Pentek Inline Water Filters - H2O Distributors

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 Reverse Osmosis Systems Under Sink Systems Quick Change Under Sink Systems Plastic Filter Housings

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

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

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

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

Pentek Inline Bacteriostatic Filters

Pentek 6" x 2" - 1/4" FNPT, Inline Bacteriostatic Cartridge

GS-6EXTRA.25-B
Pentek 6" x 2" - 1/4" FNPT, Inline Bacteriostatic Cartridge

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

Pentek 10" x 2" - 1/4" FNPT, Inline Bacteriostatic Cartridge

GS-10EXTRA.5-B
Pentek 10" x 2" - 1/4" FNPT, Inline Bacteriostatic Cartridge

Pentek 10" x 2" - 3/8" FNPT, Inline Bacteriostatic Cartridge

GS-10EXTRA.5-C
Pentek 10" x 2" - 3/8" FNPT, Inline Bacteriostatic Cartridge

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

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

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

Pentek 6" x 2" - 1/4" FNPT, Inline GAC & Scale Inhibitor

GS-6ALS-B
Pentek 6" x 2" - 1/4" FNPT, Inline GAC & Scale Inhibitor

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

Pentek 10" x 2" - 3/8" FNPT, Inline GAC & Scale Inhibitor

GS-10ALS-C
Pentek 10" x 2" - 3/8" FNPT, Inline GAC & Scale Inhibitor

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

Pentek Inline Lime & Scale Filters

Pentek 6" x 2" - 1/4" FNPT, Inline Scale Inhibitor

GS-6pH-B
Pentek 6" x 2" - 1/4" FNPT, Inline Scale Inhibitor

Pentek 10" x 2" - 1/4" FNPT, Inline Scale Inhibitor

GS-10pH-B
Pentek 10" x 2" - 1/4" FNPT, Inline Scale Inhibitor

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

Pentek Inline Chlorine Taste & Odor Carbon Block Filters

Pentek 10" x 2" - 1/4" John Guest, Inline 1 Micron Chlorine Taste & Odor Cartridge

GS-10CB-1-G
Pentek 10" x 2" - 1/4" John Guest, Inline 1 Micron Chlorine Taste & Odor Cartridge

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

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

Pentek 14" x 2.5" - 3/8" FNPT, Inline 5 Micron Chlorine Taste & Odor Cartridge

GS-215CB-5-C
Pentek 14" x 2.5" - 3/8" FNPT, Inline 5 Micron Chlorine Taste & Odor Cartridge

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

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

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

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