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Home > Installation Parts & Filter Accessories > O-Rings


Water Filter O-Rings and Gaskets

WaterFilters.NET carries o-rings for American Plumber, Ametek Kleen-Plus, AquaPure, Culligan, CUNO, Doulton, GE, Hydrotech, Liquatec, Microline, Pentek, Teledyne, US Filter, Waterpik, Watts Flowmatic and many other housing brands. O-Rings are used to seal the water filter housing cap to the water filter housing sump to prevent leaks. It is important to lubricate your o-ring with FDA Food-Grade Silicone Grease. DO NOT use petroleum jelly because this can cause the o-rings to swell preventing a tight seal. O-Rings should be replaced every couple of filter changes or when you notice any damage or stretching of the o-ring.

Helpful Hint: If you do not know the size of your system's o-ring, open the filter housing and measure the
diameter of the o-ring. Your housing determines your o-ring size and not the filter that is used inside your housing.

O-Rings (Total Products: 40)

Culligan Pentek OR-34 O-Ring American Plumber, Culligan, Pentek OR-34 O-Ring (4.125" Diameter)
Use with Standard Whole House Housings, HF-150, HF-160, HF-360, HF-365, & More
Culligan Pentek OR-34 O-Ring
Pentek Culligan OR-38 O-Ring American Plumber, Culligan, Pentek OR-38 O-Ring (3.5" Diameter)
Use with Slim Line Housings, 3G Housings, US-550, US-560, US-316, SY-5167, SY-5197, & More
Pentek Culligan OR-38 O-Ring
Pentek Culligan OR-100 O-Ring American Plumber, Culligan, Pentek OR-100 O-Ring for Big Blue Housings
Use with Big Blue Housings, 20" Big Blue Housings, 10" Big Blue Housings, HD-950, & More
5.75" Diameter
Pentek Culligan OR-100 O-Ring
Culligan Pentek OR-233 O-Ring American Plumber, Culligan, Pentek OR-233 O-Ring (3" Diameter)
Use with US-600, SY-2300, SY-2300S, SY-2500, SY-2650, RO-3000, RO-3500, SY-2000, & More
Culligan Pentek OR-233 O-Ring
WBC-OR Square Cut ORing Big Clear Housings WBC-OR Square-Cut O-Ring for Big Clear Housings
Use for Pentek, Ametek, US Filter, American Plumber Big Clear Housings
WBC-OR Square Cut ORing Big Clear Housings
Pentek OR-033 Brine O-Ring American Plumber / Pentek OR-033 Brine Ring O-Ring
Use with RO-3000, RO-3500, WRO-3000, & WRO-3500 Systems
Pentek OR-033 Brine O-Ring
Culligan AquaCleer Reverse Osmosis System O-Rings Culligan AC & H Series Aqua-Cleer Reverse Osmosis System O-Rings
Use with Culligan AC-15, AC-30, AC-50, H30S-R, H5, H53, H8, H82, H83, H83S-R, H84, LC-50
Culligan AquaCleer Reverse Osmosis System O-Rings
Watts WOR-FF Full Flow O-Ring Watts WOR-FF O-Ring for Full Flow Housings
Use with Watts #10 & #20 Full-Flow Clear & Opaque Housings, PurePro WF-10 & WF-20 Housings
Watts WOR-FF Full Flow O-Ring
Watts Flowmatic OR-4 O-Ring Watts OR-4 Replacement O-Ring
Use with Flowmatic 500, 4000, 4200, 7000, VIH, FMRO4G, FMRO5G, & More
Watts Flowmatic OR-4 O-Ring
AquaPure 63597174C ORing 3M CUNO Aqua-Pure 63597-174C O-Ring (3.5" Diameter)
Use with AquaPure AP11, AP11S, AP11T, AP12S, AP12T, AS26T, AP51T, AP101, AP101S, AP101, AP102 & More
AquaPure 63597174C ORing
AquaPure 6889832 ORing 3M CUNO Aqua-Pure 68898-32 O-Ring (5.75" Diameter; White Cap)
Use with CUNO Aqua-Pure AP801, AP802, AP802-1.5-C, AP801T, and AP802T Housings
AquaPure 6889832 ORing
GE Merlin 1240326 Sump Oring GE Merlin 1240326 Sump Housing O-Ring
Use with GE Merlin Reverse Osmosis System
GE Merlin 1240326 Sump Oring
GE WS03X10039 O-Ring GE WS03X10039 HDRING Water Filter O-Ring (5-7/8" Outside Diameter)
Use with GE SmartWater Housings including the GXWH30C, GXWH35F, & More
GE WS03X10039 O-Ring
GE WS03X10001 ORing GE WS03X10001 Housing Sump O-Ring (3-5/8" Outside Diameter)
Use with GE GN1S15CBL, GN1S20C, GNSL05CBL, GNSV25CBL, GNSV30CCC, GNSV30CWW, GX1S01C, & More
GE WS03X10001 ORing
GE WS03X10012 Reverse Osmosis Filter O Ring GE WS03X10012 Reverse Osmosis Filter O-Ring (3-3/8" Outside Diameter)
Use with GE RO Systems including PNRV18ZWH01, PNRV18ZWW01, PNRV18ZBB01, PNRV18ZBL01, PNRV18ZCC
GE WS03X10012 Reverse Osmosis Filter O Ring
GE WS03X10028 Reverse Osmosis Filter ORing GE WS03X10028 Reverse Osmosis Membrane O-Ring (2" Outside Diameter)
Use with GE SmartWater RO Systems including the PNRV12ZWH01, PNRV12ZBL01, GXRV10ABL
GE WS03X10028 Reverse Osmosis Filter ORing
GE WS03X10038 Water Filter O-Ring GE SmartWater WS03X10038 Water Filter O-Ring (3-9/16" Outside Diameter)
Use with GE SmartWater Housings including the GXWH01C, GXWH08C, GXWH04F, GXWH20F
GE WS03X10038 Water Filter O-Ring
GE WS03X10045 Reverse Osmosis Filter O Ring GE SmartWater WS03X10045 Reverse Osmosis Filter O-Ring
Use with the GE SmartWater GXRM10GBL Reverse Osmosis System
GE WS03X10045 Reverse Osmosis Filter O Ring
GE WS03X10046 Water Filter ORings Kit GE WS03X10046 O-Ring Kit (4 Small & 2 Large O-Rings)
Use with GE SmartWater GNSL60FBL, GNSV70FBL, GNSV75FWW, GXSL55F, GXSV65F Housings
(Kit Contents: 4 Small O-Rings & 2 Large O-Rings)
GE WS03X10046 Water Filter ORings Kit
GE WS03X10047 Water Filters ORing Set GE WS03X10047 O-Ring Kit (6 Small & 4 Large O-Rings)
Use with GE SmartWater PNRQ15FBL00, PNRQ20FBB00, PNRQ20FBL00, PNRQ20FCC00, PNRQ20FWW00, PXRQ15F00
(Kit Contents: 6 Small O-Rings & 4 Large O-Rings)
GE WS03X10047 Water Filters ORing Set
Hydrotech 34201026 Housing O-Ring Hydrotech 34201026 Housing O-Ring (2.5" Diameter)
Use with Hydrotech 3 and 4 Vessel Systems, 101 Series, 123 Series, & HT-HTF Systems
Hydrotech 34201026 Housing O-Ring
Hydrotech 34201013 Flow Control O-Ring Large Hydrotech 34201013 Flow Control O-Ring (large)

Hydrotech 34201013 Flow Control O-Ring Large
O-Ring Whirlpool Sears Kenmore EcoWater Ecodyne Whirlpool Sears Kenmore EcoWater Ecodyne O-Ring (2.5" Diameter)
Use with Whirlpool Sears Kenmore EcoWater Ecodyne Housings
O-Ring Whirlpool Sears Kenmore EcoWater Ecodyne
Microline Clack S3069 ORings Microline Clack S3069 Housing O-Ring (2.75" Diameter)
Use with Microline Clack S7029 Sumps
Microline Clack S3069 ORings
Pentek 143216 O-Ring ST Stainless Steel Housings Pentek 143216 O-Ring for ST Stainless Steel Housings
Use with ST-1, ST-2, ST-3
Pentek 143216 O-Ring ST Stainless Steel Housings
Pentek 143218 O-Ring STBC Stainless Steel Pentek 143218 O-Ring for ST-BC Stainless Steel Housings
Use with ST-BC-4, ST-BC-8, ST-BC-12, ST-BC-16, ST-BC-20
Pentek 143218 O-Ring STBC Stainless Steel
Pentek 143339 Head Nut Gasket ST Steel Housings Pentek 143339 Replacement Head Nut Gasket for ST Series Housings
Head Nut Gasket Kit for ST-1, ST-2, ST-3 Stainless Steel Housings
Pentek 143339 Head Nut Gasket ST Steel Housings
151117 Viton O-Ring for Natural Housings Pentek 151117 Viton O-Ring for All Natural Polypropylene Housings
Use with 150150, 150132, 150154, 150134, 150156, 150135, 150158, 150141 Housings
151117 Viton O-Ring for Natural Housings
Pentek 151118 O-Ring High Temperature Silicone Pentek 151118 O-Ring for High Temperature Housings
#241 Silicone FDA Grade O-Ring; Use with 150015, 150111 High Temperature Housings
Pentek 151118 O-Ring High Temperature Silicone
Pentek 158096 O-Ring SlimLine Hot Water Housings OR-237 Pentek 158096 O-Ring for High Temperature SlimLine Housings
#237 Silicone FDA Grade O-Ring; Use with 158318, 158319 High Temperature Housings
Pentek 158096 O-Ring SlimLine Hot Water Housings
Waterpik 274300 O-Ring Teledyne Waterpik 274300 O-Ring
Use with Teledyne Waterpik IF-10, IF-20, IF-70, IF-100, K-50 Water Filter Housings
DISCONTINUED BY MANUFACTURER
NO ALTERNATE AVAILBLE
Waterpik 274300 O-Ring
Everpure EV307119 Water Filter O-Ring Everpure EV307119 Water Filter O-Ring (4" Diameter)
Use with Everpure 117-1213, EV932803, EV307018, PLB-01214, 117-1214, AR-X & More
Everpure EV307119 Water Filter O-Ring
Everpure EV311240 Water Filter O-Ring Everpure EV311240 Water Filter O-Ring (4.125" Diameter)
Use with Everpure 3/4" Inlet/Outlet Standard & Valve-In-Head Housings
O-RING DISCONTINUED.
REPLACEMENT AVAILABLE.
Everpure EV311240 Water Filter O-Ring
CUNO Water Factory 41-232250 O-Ring 3M CUNO Water Factory 41-232250 O-Ring (5.75" Diameter)
Use with CUNO Black Cap Heavy Duty Housings
O-RING DISCONTINUED.
REPLACEMENT AVAILABLE.
CUNO Water Factory 41-232250 O-Ring
CUNO Water Factory 41-232237 O-Ring 3M CUNO Water Factory 41-232237 O-Ring (10" & 20" Housings)
Use with CUNO LP-40, LP-80, 4000-CTA, N4000, N4500, N5000 Systems
O-RING DISCONTINUED.
REPLACEMENT AVAILABLE.
CUNO Water Factory 41-232237 O-Ring
QMP OR-239 Replacement Orings for Countertop System QMP OR-239 Countertop System Oring
Use with QMP603 Countertop Filter System
QMP OR-239 Replacement Orings for Countertop System
W2326130 Doulton HCPS Housing O-Ring Doulton W2326130 O-Ring #W2326130 for Doulton HCPS Filter Housing
replacement for HCPS Doulton Housing
W2326130 Doulton HCPS Housing O-Ring
Doulton W2390009 HIP Housing O-Ring Doulton W2390009 O-Ring Gasket for Doulton HIP Housings
replacement for HIP Doulton Housing
Doulton W2390009 HIP Housing O-Ring
GE O-Ring Silicone Grease O-Ring Silicone Grease (0.2 oz Packet)
Use on all brands of Water Filter Housing O-Rings
GE O-Ring Silicone Grease
ORing Silicone Lubricant Dow Corning 111 O-Ring Silicone Lubricant (5.3 oz. Tube)
Use on all brands of Water Filter Housing O-Rings
ORing Silicone Lubricant