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O-Rings & Housing Seals

Replacement O-rings for water filter housings and reverse osmosis systems. Search by the part number on your old ring or housing, such as 151122, OR-250, W34-OR or 63597174C. Each listing shows the compatible part numbers and the material, so you can check fit before you order. CFS rings are compatible replacements, not original manufacturer parts.

CFS Big Blue housing O-ring 3 pack

CFS O-Ring Compatible with Pentek 151122, Culligan OR-250, iSpring ORBX2, W10-OR - Big Blue 10 & 20 in Housings - AS568-357 Buna-N

In stock
from $9.99

Fit and part numbers Ring size: AS568-357, about 5.475 in ID x 0.210 in thick, Buna-N (nitrile) 70. Compatible with: Pentair Pentek 151122, 151121;...

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from $9.99
CFS O-Ring Compatible with Pentek 151120, American Plumber W34-OR, Culligan OR-34 - Standard 10 in Housings - Buna-N

CFS O-Ring Compatible with Pentek 151120, American Plumber W34-OR, Culligan OR-34 - Standard 10 in Housings - Buna-N

In stock
from $3.49

Fit and part numbers Compatible with: Pentek 151120; American Plumber W34-OR, 152030; Culligan OR-34; standard 10 in x 2.5 in filter and reverse os...

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from $3.49
CFS 3 Pack Filter Housing O-Ring for WS03X10038 OR-34 W34-OR 151120

CFS O-Ring Compatible with GE WS03X10038, UCRING - GXWH04F, GXWH20S, GXRM10 Housings - Buna-N

In stock
from $12.99

Fit and part numbers Compatible with GE WS03X10038, UCRING, KWGE25RG for GXWH04F, GXWH20F, GXWH20S, GXRM10, GX1S01R housings. Also compatible with ...

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from $12.99
3-pack replacement O-rings, compatible with Watts OR-4 filter housings

CFS O-Ring Compatible with Watts OR-4 - FlowPur FH4000, FH4200 10 in Housings

In stock
from $3.99

Fit and part numbers Compatible with Watts OR-4; FlowPur FH4000, FH4200 10 in housings (RV, trailer and camper inline systems). Buna-N. 1 and 3 pac...

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from $3.99