Pentek Filters

Pentek is the largest brand in the filtration industry. With over 50 types of Pentek inline filters in stock, H2O offers a wide line of choices in 4 standard sizes, available for immediate shipment. Pentek inline water filters are available with 1/4" & 3/8" FPT connections and many with 1/4" and/or 3/8" John Guest quick-connect fittings built-in.

All Pentek filters are NSF Certified and are made with the highest grade materials available.

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.

Other applications include: appliances, water coolers, coffee makers, and other low flow applications.

Pentek Products

We carry a wide variety of replacement filter cartridges, water filter systems, and filter housings & accessories from Pentek:

Carbon Block Cartridges GAC Cartridges Melt Blown Sediment Cartridges Ultrafiltration Cartridges Quick Change Under Sink Systems Plastic Filter Housings

Pentek Inline Granular Activated Carbon Filters

pentek Logo
  1. Inline Water Filters and Icemaker Filters
  2. Pentek Inline Water Filters
  3. Pentek Inline Granular Activated Carbon Filters
Pentek 10" x 2" - 1/4" FNPT, Inline Coconut Shell GAC Cartridge
GS-10RO-B
Pentek 10" x 2" - 1/4" FNPT, Inline Coconut Shell GAC Cartridge
Top Seller
Qty:
Pentek 10" x 2" - 3/8" FNPT, Inline Coconut Shell GAC Cartridge
GS-10RO-C
Pentek 10" x 2" - 3/8" FNPT, Inline Coconut Shell GAC Cartridge
Qty:
Pentek 10" x 2" - 1/4" John Guest, Inline Coconut Shell GAC Cartridge
GS-10RO-G
Pentek 10" x 2" - 1/4" John Guest, Inline Coconut Shell GAC Cartridge
Top Seller
Qty:
Pentek 10" x 2" - 3/8" John Guest, Inline Coconut Shell GAC Cartridge
GS-10RO-H
Pentek 10" x 2" - 3/8" John Guest, Inline Coconut Shell GAC Cartridge
Qty:

Pentek Inline Bacteriostatic Filters

pentek Logo
  1. Inline Water Filters and Icemaker Filters
  2. Pentek Inline Water Filters
  3. Pentek Inline Bacteriostatic Filters
Pentek 6" x 2" - 1/4" John Guest, Inline Bacteriostatic Cartridge
GS-6EXTRA.25-G
Pentek 6" x 2" - 1/4" John Guest, Inline Bacteriostatic Cartridge
Qty:
Pentek 10" x 2" - 1/4" FNPT, Inline Bacteriostatic Cartridge
GS-10EXTRA.5-B
Pentek 10" x 2" - 1/4" FNPT, Inline Bacteriostatic Cartridge
Qty:
Pentek 10" x 2" - 3/8" FNPT, Inline Bacteriostatic Cartridge
GS-10EXTRA.5-C
Pentek 10" x 2" - 3/8" FNPT, Inline Bacteriostatic Cartridge
Qty:

Pentek Inline Sediment & Rust Particulate Filters

pentek Logo
  1. Inline Water Filters and Icemaker Filters
  2. Pentek Inline Water Filters
  3. Pentek Inline Sediment & Rust Particulate Filters
Pentek 10" x 2" - 1/4" John Guest, Inline Sediment & Rust Cartridge
GS-10SED-5-G
Pentek 10" x 2" - 1/4" John Guest, Inline Sediment & Rust Cartridge
Qty:
Pentek 14" x 2.5" - 1/4" John Guest, Inline Sediment & Rust Cartridge
GS-215SED-5-G
Pentek 14" x 2.5" - 1/4" John Guest, Inline Sediment & Rust Cartridge
Qty:

Pentek Inline Lime, Scale, and Chlorine Taste & Odor Filters

pentek Logo
  1. Inline Water Filters and Icemaker Filters
  2. Pentek Inline Water Filters
  3. Pentek Inline Lime, Scale, and Chlorine Taste & Odor Filters
Pentek 10" x 2" - 1/4" FNPT, Inline GAC & Scale Inhibitor
GS-10ALS-B
Pentek 10" x 2" - 1/4" FNPT, Inline GAC & Scale Inhibitor
Qty:
Pentek 10" x 2" - 3/8" John Guest, Inline GAC & Scale Inhibitor
GS-10ALS-H
Pentek 10" x 2" - 3/8" John Guest, Inline GAC & Scale Inhibitor
Qty:

Pentek Inline Lime & Scale Filters

pentek Logo
  1. Inline Water Filters and Icemaker Filters
  2. Pentek Inline Water Filters
  3. Pentek Inline Lime & Scale Filters
Pentek 10" x 2" - 1/4" John Guest, Inline Scale Inhibitor
GS-10pH-G
Pentek 10" x 2" - 1/4" John Guest, Inline Scale Inhibitor
Qty:

Pentek Inline Chlorine Taste & Odor Carbon Block Filters

pentek Logo
  1. Inline Water Filters and Icemaker Filters
  2. Pentek Inline Water Filters
  3. Pentek Inline Chlorine Taste & Odor Carbon Block Filters
Pentek 10" x 2" - 3/8" John Guest, Inline 1 Micron Chlorine Taste & Odor Cartridge
GS-10CB-1-H
Pentek 10" x 2" - 3/8" John Guest, Inline 1 Micron Chlorine Taste & Odor Cartridge
Qty:
Pentek 10" x 2" - 1/4" FNPT, Inline 5 Micron Chlorine Taste & Odor Cartridge
GS-10CB-5-B
Pentek 10" x 2" - 1/4" FNPT, Inline 5 Micron Chlorine Taste & Odor Cartridge
Qty:

Pentek Inline TDS Reduction - High Capacity DI Resin Filters

pentek Logo
  1. Inline Water Filters and Icemaker Filters
  2. Pentek Inline Water Filters
  3. Pentek Inline TDS Reduction - High Capacity DI Resin Filters
Pentek 11" x 2.5" - 1/4" FNPT, Inline 20 Micron TDS Reduction Cartridge
GS-210DI-B
Pentek 11" x 2.5" - 1/4" FNPT, Inline 20 Micron TDS Reduction Cartridge
Qty:
Pentek 14" x 2.5" - 1/4" FNPT, Inline 20 Micron TDS Reduction Cartridge
GS-215DI-B
Pentek 14" x 2.5" - 1/4" FNPT, Inline 20 Micron TDS Reduction Cartridge
Qty:

Pentek Inline pH Stabilizers

pentek Logo
  1. Inline Water Filters and Icemaker Filters
  2. Pentek Inline Water Filters
  3. Pentek Inline pH Stabilizers
Pentek pH Stabilizing Calcite/Carbon Inline Water Filter w 1/4" Ports
GS-10CAL-RO-B
Pentek pH Stabilizing Calcite/Carbon Inline Water Filter w 1/4" Ports
Top Seller
Qty:
Pentek pH Stabilizing Calcite/Carbon Inline Water Filter w 3/8
GS-10CAL-RO-H
Pentek pH Stabilizing Calcite/Carbon Inline Water Filter w 3/8" John Guest Fittings
Top Seller
Qty: