FNPT Female National Pipe Thread FPT Female Pipe Thread
GAC Granular Activated Carbon
GPD Gallons Per Day
GPM Gallons Per Minute
ID Inner Diameter
JG John Guest
KDF A type of filtration media
MNPT Male National Pipe Thread MPT Male Pipe Thread
NPT National Pipe Thread
NSF National Sanitation Foundation
OD Outer Diameter
NTU Nephelometric Turbidity Unit
POE Point of Entry
POU Point of Use
PP Polypropylene
PPM Parts Per Million
QC Quick-Connect
RO Reverse Osmosis
SS Stainless Steel
TDS Total Dissolved Solids
TFC Thin Film Composite
TFM Thin Film Membrane
UF Ultrafiltration
UV Ultraviolet
Acetal
Polyoxymethylene (POM), also known as acetal, polyacetal and polyformaldehyde, is an engineering thermoplastic used in precision parts requiring high stiffness, low friction and excellent dimensional stability
Activated Carbon
Activated carbon media is a high purity Granular Activated Carbon that can be made from coconut shells, bituminous coal or bamboo, and is utilized for enhanced elimination of impurities and solvents.
Air Gap (Faucet)
The drain water comes from the reverse osmosis system up to faucet and then it passes through an air gap. The water then goes into a different line which is connected to the drain. The air gap provides protection from drain water backing up into the RO System.
Backflow
A backflow prevention assembly is used to protect potable water supplies from contamination or pollution due to backflow. In water supply systems, water is normally maintained at a significant pressure to enable water to flow from the tap, shower etc. When pressure fails or is reduced, as may happen if a water main bursts, pipes freeze or there is unexpectedly high demand on the water system, then such reduced pressure in the pipe may allow contaminated water from the ground, from storage or from other sources to be drawn up into the system.
Backwash
To keep water treatment filters functional, they have to be cleaned periodically to remove particulates. Ineffective backwashing is one of the main reasons that water treatment filters fail. In terms of water treatment, including water purification and sewage treatment, backwashing refers to pumping water backwards through the filter media, sometimes including intermittent use of compressed air during the process. Backwashing is a form of preventive maintenance so that the filter media can be reused.
Bacteriostatic
A bacteriostatic agent or bacteriostat, abbreviated Bstatic, is a biological or chemical agent that stops bacteria from reproducing, while not necessarily harming them otherwise. Depending on their application, bacteriostatic antibiotics, disinfectants, antiseptics and preservatives can be distinguished. Upon removal of the bacteriostat, the bacteria usually start to grow again. This is in contrast to bactericides, which kill bacteria.
Bladder Tank (Storage Tank)
Bladder tanks maintain a supply of high quality water, ready to use anytime you need it. Purified water enters and exits the tank through the same tube. Feed water pressure forces water into the tank. Opening the faucet relieves the pressure and reverses the flow, allowing water to flow through the post-filter and out of the faucet. The reverse osmosis (RO) bladder tank is pre-pressurized with 7 to 8 lbs. of air. Air pressure does not normally need to be checked or changed. The tank can operate on its base or on its side.
Carcinogen
A carcinogen is any substance, radionuclide, or radiation that is an agent directly involved in causing cancer.
Charcoal Filter (Media)
A common misnomer of activated carbon media (See: Activated Carbon)
Check Valve
Check Valves allow the flow of water only in one direction to prevent backflow.
Coconut Shell (Media)
(See: Activated Carbon)
Cryptosporidiosis
Cryptosporidiosis is a disease caused by the parasite Cryptosporidium parvum, which as late as 1976 was not known to cause disease in humans. Until 1993, when over 400,000 people in Milwaukee, Wisconsin, became ill with diarrhea after drinking water contaminated with the parasite, few people had heard of either Cryptosporidiosis or the single-celled protozoan that causes it.
Dosage (UV Radiation)
Dosage refers to the measurable germicidal effectiveness of ultraviolet light on microorganisms. This is determined by the the turbidity (clearness) of the water, distance from and intensity of the UV light and exposure time, or: UV dose = UV intensity x time in seconds.
Granular Activated Carbon (GAC)
GAC is activated carbon media and has an extremely large amount of adsorption surface area.
Gallons Per Day (GPD)
A measurement of how much product water a system can produce in a day.
Gallons Per Minute (GPM)
A measurement of how much product water a system can produce in a minute.
Hard Water
Water hardness is the most common problem found in the average home. Hard water is water that contains dissolved hardness minerals above 1 GPG. Calcium, Magnesium, and Lime are the most common minerals in hard water.
Hexavalent Chromium (Chromium 6)
Hexavalent chromium (CrVI or Chromium 6) is a group of chemical compounds containing the element chromium that is odorless and tasteless. It is used in the production of stainless steel, textile dyes, wood preservation, leather tanning, and a variety of other applications. Hexavalent chromium is a probable carcinogen and was brought to national attention when it was found in the drinking water supply of the southern California town of Hinkley, and the subsequent involvement of Erin Brockovich.
Hydrologic Cycle (Water Cycle)
The Hydrologic Cycle (also called the Water Cycle) is the continuous movement of water in the air, on the surface of and below the Earth.
Inline
Inline filters can be installed directly on the water line. These filters are often used as a Reverse Osmosis (RO) inline post filter. They clip on to the membrane housing and filter the water after the bladder tank, acting as a polishing filter.
KDF (Media)
KDF 55 Media is used in chlorine removal applications in conjunction with granular activated carbon. KDF 55 strips the chlorine from the water before the water contacts the carbon. The carbon, not being burdened with the job of chlorine removal is then free to perform higher level carbon filtration. Such as removal of chemical contaminants including Volatile Organic Chemical (VOC’s) and Trihalomethanes (THM’s). KDF 85 Media is used for removal of iron and sulfur from well water. It regenerates with a thorough backwash of water. No chemicals required.
The reverse osmosis membrane (thin film composite membrane) reduces dissolved minerals, metals, and salts. In this process, harmful compounds are separated by the membrane from the water, and the contaminants are flushed to the drain.
Micron (µ)
Micron (officially called micrometer) is a unit of length that is one-millionth of a meter and is a common unit of measurement for wavelengths of infrared radiation as well as sizes of cells and bacteria. In water filter cartridges the micron refers to the pore size of the cartridge. Micron is sometimes referred to with the µ symbol.
Nanofiltration
Nanofiltration is a relatively recent membrane filtration process used most often with low total dissolved solids water such as surface water and fresh groundwater, with the purpose of softening (polyvalent cation removal) and removal of disinfection by-product precursors such as natural organic matter and synthetic organic matter
National Pipe Thread (NPT)
A set of technical standards for screw threads used on threaded pipes and pipe fittings in the U.S., known officially as American National Standard Pipe Thread standards. Female and Male pipe threads may be abbreviated as FNPT and MPT (or MNPT) respectively.
NSF (Certification)
NSF International, a not-for-profit, non-governmental organization, is the world leader in standards development, product certification, education, and risk-management for public health and safety.
Nephelometric Turbidity Unit (NTU)
Nephelometric Turbidity Unit is a measurment of the turbidity of water. Turbidity is the cloudiness or haziness of a fluid caused by large numbers of individual particles that are generally invisible to the naked eye, similar to smoke in air. The measurement of turbidity is a key test of water quality. The human eye can detect down to 3 NTU in water.
Particulate
Solid materials suspended in water.
pH
A measure of the acidity or alkalinity of a solution, numerically equal to 7 for neutral solutions, increasing with increasing alkalinity and decreasing with increasing acidity. The pH scale commonly in use ranges from 0 to 14.
Parts Per Million (PPM)
Unit of measurement and is the relative abundance of dissolved minerals or pollutants in water.
Point of Entry (POE) & Point of Use (POU)
A desciptor of a water filter system’s location based on it’s intended use. Point of entry (POE) filters are whole house or water softener systems and are installed near where the water enters the home, usually the basement, treating all of the water in the house. Point of use (POU) filters are located near where the water will be used, like a shower filter on a shower head or an under sink system in a cabinet under the kitchen sink.
Polishing
The term water polishing can refer to any process that removes small (usually microscopic) particulate material, or removes very low concentrations of dissolved material from water. The process and its meaning vary from setting to setting.
Polypropylene (PP)
Polypropylene (PP), also known as polypropene, is a thermoplastic polymer used in a wide variety of applications including packaging and labeling, textiles (e.g., ropes, thermal underwear and carpets), stationery, plastic parts and reusable containers of various types, laboratory equipment, loudspeakers, automotive components, and polymer banknotes. An addition polymer made from the monomer propylene, it is rugged and unusually resistant to many chemical solvents, bases and acids.
Potable Water
Water that is fit or suitable for drinking.
Quick-Connect (QC)
Quick-connect is a connection type that requires no tools to connect or disconnect. Quick-connect works on the same principle as a Chinese finger trap, where pulling away from the connection tightens its grip on the tubing.
Rejection
Rejection is the percentage rate at which a filter will block contaminants and particulates from passing through.
Resin
An ion-exchange resin or ion-exchange polymer is an insoluble matrix (or support structure) normally in the form of small (1-2 mm diameter) beads, usually white or yellowish, fabricated from an organic polymer substrate. The material has a highly developed structure of pores on the surface of which are sites with easily trapped and released ions. The trapping of ions takes place only with simultaneous releasing of other ions; thus the process is called ion-exchange.
Reverse Osmosis (RO)
Reverse osmosis (RO) is a membrane-technology filtration method that removes many types of large molecules and ions from solutions by applying pressure to the solution when it is on one side of a selective membrane. The result is that the solute is retained on the pressurized side of the membrane and the pure solvent is allowed to pass to the other side.
Scale
Rust and corrosion products adhering to the inner surfaces of pipes; serve to decrease ability to transfer heat and to increase the pressure drop for flowing fluids.
Sediment
Sediement is matter present in a water supply, commonly dirt or sand, that enters the water due to aging pipes.
Softening
Water softening is the removal of calcium, magnesium, and certain other metal cations in hard water. The resulting soft water is more compatible with soap and extends the lifetime of plumbing. Water softening is usually achieved using ion-exchange resins.
Total Dissolved Solids (TDS)
The total weight of the solids that are dissolved in the water, give in ppm per unit volume of water. Total dissolved solids (TDS) is determined by filtering a given volume of water (usually through a 0.45 micron filter), evaporating it at a defined temperature (usually 103-105 degrees Celsius), and then weighing the residue. TDS meters can also be used to measure total dissolved solids.
Thin Film Membrane (TFC or TFM)
Thin film composite membranes (TFC or TFM) are semi permeable membranes manufactured principally for use in water purification or water desalination systems. They also have use in chemical applications such as batteries and fuel cells.
Ultrafiltration (UF)
Ultrafiltration (UF) is a variety of membrane filtration in which hydrostatic pressure forces a liquid against a semipermeable membrane. Suspended solids and solutes of high molecular weight are retained, while water and low molecular weight solutes pass through the membrane. This separation process is used in industry and research for purifying and concentrating macromolecular solutions, especially protein solutions. Ultrafiltration is not fundamentally different from microfiltration, nanofiltration or gas separation, except in terms of the size of the molecules it retains.
Ultraviolet (UV)
Ultraviolet light is at the invisible, violet range of the electromagnetic spectrum. The water treatment industry uses a high-powered form of UV light called UV-C or “germicidal UV” to disinfect water.
Water Hammer
Water Hammer (also called hydraulic shock or fluid hammer) is a surge of pressure in a water pipe caused by a few reasons, such as a valve being closed downstream of flowing water. The result is a shock wave that can cause noise, vibration, pipe rupture and equipment damage. Damage from such events can be mitigated by re-establishing the natural air pockets in your plumbing system or with various devices, such as a water hammer arrestor, which acts as a shock absorber from sudden pressure changes. Read more about water hammer at How Stuff Works or view a video explaining how water hammer occurs.
Whole House
Whole house systems filter water at the point of entry into a home and are designed to remove contaminants such as iron, sulfur and manganese as well as dirt and sediments.
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Buttress Thread vs Acme Thread Comparison
Buttress Threads provide superior sealing and higher burst ratings than the Acme Threads found on most housings. Because of this, Pentek introduced their line of 3G Housings that feature buttress threads. We also carry housings from Watts/Flowmatic & Kemflo that utilize buttress threads.
Buttress Thread Design
Acme Thread Design
Buttress Thread Design
Acme Thread Design
Shipping
Orders over $150 receive free UPS ground shipping in the continental U.S. (excluding Alaska & Hawaii). Exceptions exist, and additional freight charges will apply for some low priced, drop shipped items from Canada and for addresses that carry accessorial UPS charges, such as certain island destinations that require ferry service and other remote locations. We will notify you of any additional amount before it is charged.
Next Day Air, 2nd Day Air & 3-Day Select delivery services are available at an additional cost.
We ship in stock items on the next business day in most cases. UPS Next Day Air and 2nd Day Air orders received before 3:00 pm Eastern Time can be shipped the same day, if ordered by phone and a request is made to expedite the order.
Please allow up to 10 business days, starting with the next business day after your order was placed, for delivery. Many orders will be received in less time. Back-ordered items may require extra time. Should any items in your order be delayed, we will contact you. If we can not deliver your order in this time frame, the order may be canceled prior to shipment, and a full refund will be credited.
Special order merchandise or custom-built equipment requires longer lead-time. Large orders and assembled whole house units are shipped via common carrier, stretch wrapped on a pallet.
We do not ship to P.O. boxes. Non-stock items are usually drop shipped.
Everpure QL3 Head
Everpure systems include a .5 GPM flow restrictor fitting that should be installed in the outlet port of the head. The fitting limits the flow of water that can go through the filter to .5 GPM.
To increase the flow to 1 GPM to match the flow rate of the MAF Cartridge, the .5 GPM fitting must be replaced with a 1 GPM fitting. The MAF cartridge will work with the .5 GPM flow restrictor, but the flow will be limited to .5 GPM. It is only necessary to replace this fitting if you desire an increase in your flow rate.
It is possible that the flow restrictor may be installed on the inlet port, however this is not recommended. If upon removing the fitting from the outlet, if it is not found to have a flow restrictor in the fitting (usually stainless steel), remove the inlet fitting and see if the flow restrictor was installed on the inlet side.
It is recommended that the flow restrictor be installed on the outlet port to prevent the small opening from becoming clogged with sediment from the untreated water.
Fitting grips before it seals. Ensure tube is pushed into the tube stop.
Step 2 – Push Up to Tube Stop
Push the tube into the fitting, to the tube stop. The collet (gripper) has stainless steel teeth which hold the tube firmly in position while the O-ring provides a permanent leak-proof seal.
Step 3 – Pull To Check if Secure
Pull on the tube to check that it is secure. It is a good practice to test the system prior to leaving site and/or before use.
Step 4 – Disconnecting
To disconnect, ensure the system is depressurized before removing the tube. Push in collet squarely against face of fitting. With the collet held in this position, the tube can be removed. The fitting can then be re-used.
John Guest Fittings, Valves & Tubing
John Guest quick connect fittings connect and disconnect without tools and never leak. Tough as nails NSF Certified and ISO 9001 Certified. These fittings are trusted the world over. John Guest fittings, ball valves and tubing are the best components for a water tight seal every time.
In 2011 Congress enacted the Reduction of Lead in Drinking Water Act to amend the Safe Drinking Water Act’s section regarding the use and introduction into commerce of lead pipes, plumbing fittings or fixtures, solder and flux. The Act established a prospective effective date of January 4, 2014, which provided a three year timeframe for affected parties to transition to the new requirements. All of the metal fixtures and fittings sold by H2O Distributors are compliant with this act.
H2O Distributors is proud to feature American-made products on its web site.
Minimum Advertised Price (MAP) Policy
When prices are not shown on the product detail page, add the item to the shopping cart to view the price.
To see our “in-store” price on this product, you must add it to your Shopping Cart by clicking the Add to Cart button. Please be assured that adding an item to your cart does not obligate you to purchase it–you can always delete the item from your cart.
We are required by the manufacturer to do this to conform to their new “Minimum Advertised Price” (MAP) policy.
Minimum Order Total
A minimum of $20.00 purchase (before shipping and applicable taxes) is required for all orders placed through this web site.
NSF Certification
NSF is widely recognized for its scientific and technical expertise in the health and environmental sciences. Its professional staff includes engineers, chemists, toxicologists, and environmental health professionals with broad experience both in public and private organizations. NSF certified products will be marked with a symbol.
NSF has earned the Collaborating Center designations by the World Health Organization (WHO) for Food and Water Safety and Indoor Environment.
Fitting grips before it seals. Ensure tube is pushed into the tube stop.
Step 2 – Push Up to Tube Stop
Push the tube into the fitting, to the tube stop. The collet (gripper) has stainless steel teeth which hold the tube firmly in position while the O-ring provides a permanent leak-proof seal.
Step 3 – Pull To Check if Secure
Pull on the tube to check that it is secure. It is a good practice to test the system prior to leaving site and/or before use.
Step 4 – Disconnecting
To disconnect, ensure the system is depressurized before removing the tube. Push in collet squarely against face of fitting. With the collet held in this position, the tube can be removed. The fitting can then be re-used.
How To Install SharkBite Brass Push-To-Connect Fittings
SharkBite brass push-to-connect fittings create a seamless and easy transition between different types of pipe materials. No tools are required and the fittings can be even installed in wet lines. The fitting can be rotated after installation, so you can install without having to worry about how it’s positioned. SharkBite fittings are also approved for behind the wall and underground installations. If the fitting is being installed for underground use, wrap with silicone self-adhesive tape before burying.
Step 1 – Identify the pipe material
To get started, identify the pipe material. SharkBite brass push-to-connect fittings are compatible with PEX, Copper, CPVC, PE-RT and HDPE pipe. SharkBite fittings come with a PEX stiffener pre-loaded into the fitting for PEX, PE-RT and HDPE. The PEX stiffener does not need to be removed for Copper or CPVC applications.
Step 2 – Cut pipe cleanly & squarely
Be sure the pipe is free of scratches or debris and cut the pipe as cleanly and squarely as possible. If you are working with copper pipe, use a deburr tool or sand paper to remove any sharp edges or burrs on the pipe. Failing to deburr the pipe properly can compromise the fitting.
Step 3 – Measure & mark the insertion depth
Use your SharkBite Deburr & Gauge Tool to measure and mark the insertion depth on your pipe.
Step 4 – Make the connection
Push the fitting to the insertion mark you just made on the pipe. Now, turn on the water and check the connection.
Removing SharkBite Fittings
Unlike other fittings, SharkBite brass push-to-connect fittings can be removed and re-used if changes are necessary. To remove the fitting, use a SharkBite Disconnect Clip or Disconnect Tongs. To use the Disconnect Clip, snap it on to the pipe and pull up to the release collar. Press the release collar using the Disconnect Clip and pull the pipe from the fitting. To use the Disconnect Tongs, slide the tongs over the fitting and the pipe. Squeeze the tongs to press the fitting’s release collar and pull the pipe from the fitting. The SharkBite Universal brass push-to-connect fitting is ready to re-use.
Shipping Rates:
These are our shipping rates for orders shipped within the continental U.S. (excluding Alaska & Hawaii). There is a minimum order total of $20. Please see our Shipping Section on our Terms & Conditions page for more detailed information.
Order Total
Shipping Charge
$20 – $59.99
$15 Shipping
$60 – $119.99
$12 Shipping
$120 – $149.99
$8 Shipping
$150+
Free Shipping
Warranty for Inline Whole House Systems
The following warranty is effective from the date of installation or 60 days after shipment, whichever date comes first.
A working pressure reducing valve must be installed in front of any water treatment equipment!
3 year limited warranty on all components and parts delivered by H2ODistributors.com Parts only.
3 year limited warranty on Flow Thru Tank Head and Filter Housings. Parts only.
10 year limited warranty on the pressure vessel (tank itself – not media). Parts only.
The warranty does not include shipping or installation charges if incurred.
The warranty on the system is effective when the system is functioning under normal operating conditions. Any variation in normal operation that may cause the unit to malfunction will void the warranty. Examples include if a pressure reduction valve fails (or is not installed) causing the system to be exposed to high pressure, exposure to freezing temperatures, etc.
Water Quality Association’s Gold Seal
The Water Quality Association’s Gold Seal Certification Program is dedicated to providing public health and safety services throughout the USA and globally, while maintaining expert service, superior reputation, and fair pricing. The Gold Seal Program offers certification of all products and chemicals that contact drinking water.
WQA certified products will be marked with a symbol.