O-Rings & Sealant

Amway * ® Compatible Fit O-ring Am101, E84, E-85 & Gen IV Water Treatment System. 5" outer diameter. 4 5/8 I.D x 5 O.D. x 3 /16 cross section or thickness. Remember to order Dow 111 o-ring silicone sealant to help prevent leaks. NSF and FDA approved EPDM O-ring.

Be Sure To Order Dow 111 Silicone Sealant To Help Prevent Leaks!

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Amway * ® Compatible Fit O-ring for Amway E-9225 and E-9230 Drinking Water Systems. 5" I.D. x 5 3/8" O.D. x 3/16" cross section or thickness. Remember to order Dow 111 o-ring silicone sealant to help prevent leaks. Learn More

Pentek # 151121 O-Ring For Slim Line Water Filter Housing Compatible With Culligan / Ametek / US Filter / Plymouth / Kleen Plus / American Plumber / Bruner & Many Other Brands. O-Ring For Slim Line Water Filter Housing. Buna-N FDA Grade. (Slim Line Housings Use A 3 1/2" diameter "O" Ring) Ametek # 151121 Same as Culligan OR-38 O-ring. Learn More

Amway * ® Compatible VA-5436 Fit O-ring for E-9395 Compact Water Treatment System filter housing that ues the E-9396 replacement drinking water filter cartridge. 3 ¼" O.D. x 3 7/16" I.D. x 3/32" cross section or thickness. Use as a o-ring replacement for the Amway VA-5436 o-ring. Be sure to order Dow 111 o-ring silicone sealant to help prevent leaks.

Be Sure To Order Dow 111 Silicone Sealant To Help Prevent Leaks!

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AquaPure Drinking Water Filter Housing O-ring #63597174 by 3M Purification. Keep your system from leaking and causing expensive damages by replacing your o-rings every other time you change your water filters. Be sure to order Dow 111 silicone sealant so the o-rings will seal properly. Never use petroleum based greases such as Vasoline. Use the best sealant, use Dow 111 silicone. Learn More

AquaPure Drinking Water Filter Housing O-ring #6889832 by 3M Purification. Keep your system from leaking and causing expensive damages by replacing your o-rings every other time you change your water filters. Be sure to order Dow 111 silicone sealant so the o-rings will seal properly. Never use petroleum based greases such as Vasoline. Use the best sealant, use Dow 111 silicone. Learn More

Culligan ® OR-233 O-ring # 411310 for Culligan US-600, US-640, SY-2000, SY-2300 and SY-2500, SY-2650 and Ace 4158622. 3" Diameter. Learn More

Culligan ® OR-100 replacement O-ring. Fits Culligan HD-950 Big Blue. Fits # 151122 Learn More

Culligan ® OR-3 O-ring Kit With Three O-rings. Kit includes one OR-34, one OR-38 and one OR-223 Orings. Often ordered by those who aren't quite sure which one is the right O-ring. # 151250 Learn More

Culligan ® OR-34 replacement O-ring. Fits Culligan HF-150, HF-160, HF-360, and Ace 45025, 46764, 49560. Learn More

Culligan ® OR-38 replacement O-ring. Fits Culligan US-550, RVF-10, US Filter RO-2127, RO-3167, Ace 4158515. Learn More

Dow Corning/MolyKote 111 ® 5.3 ounce Tube of O-Ring Silicone Sealant and Lubricant. FDA and NSF approved. Simply the best! (Do Not Use Petroleum Jelly As It May Break Down O-rings Or Filter Housings) This is the same premium grade silicone sealant and lubricant used in underwater photography cameras, scuba gear and other underwater applications that simply can't afford leaks. Why not use the best for your reverse osmosis or drinking water filtration system? Learn More

Dow Corning/Molykote ® 111 6 gram O-ring Silicone Lubricant and Sealant - 6 gram pillow pack. (like a ketchup packet) Great O-ring sealant and lubricant. FDA and NSF approved. (Do Not Use Petroleum Jelly As It May Break Down O-rings Or Housings) This is the same premium grade silicone sealant and lubricant used in underwater photography cameras, scuba gear and other underwater applications that simply can't afford leaks. Why not use the best for your reverse osmosis or drinking water filtration system?

Dow 111 Silicone MSDS Safety Sheet

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Hydrotech ® 34201026 & Aquafier O-ring for filter housing. Fits Hydrotech, Aquafier and Hydrofiner systems. 2 1/2" diameter Learn More

O-rings For Standard Style RO Membrane Housing. Pair of O-rings for standard style reverse osmosis membrane housings. Learn More

Microline / Clack ® S3069 o-ring. Fits Microline - Clack sump #S7029. Replace O-rings when changing the filters to help prevent leaks. Be sure to replace the o-rings in all older systems. Be sure to use Dow 111 Silicone sealant to help prevent leaks. Learn More

OMNIFILTER K4 ® O-rings - Price per set of 4. Fits Under Sink Models CBF1, OT32,CBF3, SFM2,CBF20, RO2000, OB3 And Whole House Models OB1, OB5, R12, R14. Be sure to order Dow 111 Silicone Sealant to Prevent Leaks. The OmniFilter K4 Replacement O-rings pack contains the following four o-rings: •1 Blue K4: fits OB3, SFM2 Series A, CBF1, CBF3 Series A, OT32 Series A, RO2000, R14, CBF20 and OB1. •1 Black WC9-13: fits white-head OB5 and OCT2. •1 Black OK40: fits OB1 Series A, OB5 Series A, R12 Series A and U25 Series E. •1 Black OK30: fits CBF1 Series A, CBF3 Series B, OT32 Series B, SFM2 Series B, RO2000 Series B Learn More

OMNIFILTER OK25 ® Replacement O-Ring for U25 Series A and U26. Be sure to order Dow 111 silicone sealant to help prevent leaks. Learn More

OMNIFILTER OK7 ® Replacement O-Ring for BF7 & BF7a Learn More

Pentek # 151254 O-Ring For Big Clear Water Filter Housing - Square Cut - Compatible With Culligan / Ametek / US Filter / Plymouth / Kleen Plus / American Plumber / Bruner & Many Other Brands. O-Ring For Big Clear Water Filter Housing. Buna-N FDA Grade. (Big Clear Housings Use A 5 3/4" diameter "O" Ring) Pentek # 151254. - Be sure to lube the o-ring with Dow 111 silicone sealant to help prevent leaks. Learn More

Pentek # 151122 O-Ring For Big Blue Water Filter Housing Compatible With Culligan / Ametek / US Filter / Plymouth / Kleen Plus / American Plumber / Bruner & Many Other Brands. O-Ring For Big Blue Water Filter Housing. Buna-N FDA Grade. (Big Blue Housings Use A 5 3/4" diameter "O" Ring) Ametek # 151122 Same as Culligan OR-100 for HD-950 Learn More

Pentek # 151120 O-Ring Replacement For Standard Size Water Filter Housings Compatible With Culligan / Ametek / US Filter / Plymouth / Kleen Plus / American Plumber / Bruner & Many Other Brands. O-Ring For Standard Size Water Filter Housing. Buna-N FDA Grade. (Standard Size Housings Use A 4" diameter O-Ring) Same as Culligan OR-34 O-ring. Learn More

Vu-Flow NT 120S O-rings for 2 Inch Vu-Flow Screen Filters. Fits all NT and Combo Style Vu-Flow sand and sediment screen filters. Learn More

Vu-Flow NT 30S O-rings for 1 Inch Vu-Flow Screen Spindown Screen Water Filters. Fits all NT and Combo Style VuFlow sand and sediment spindown screen water filters. Be sure to use Dow 111 silicone sealant on the o-ring to prevent leaks. Learn More

Vu-Flow NT 60S O-rings for 1 and 1 1/2" Vu-Flow Screen Filters. Fits all NT and Combo Style Vu-Flow sand and sediment screen filters. Learn More

WFO-O-ring - Sears Kenmore UltraFilter ®, Whirlpool ®, EcoWater ® , Ecodyne ® compatible o-ring. Fits Sears Kenmore UltraFilter ® 150, 625.385700, 42-38476 Sears Kenmore UltraFilter ® 300, 625.384720, 42-38476 Sears Kenmore UltraFilter ® 350, 625.385720, 42-38476 Sears Kenmore UltraFilter ® 500, 625.384750, 42-38476 Sears Kenmore UltraFilter ® 550, 625.385750, 42-38576 Sears Kenmore ® 42-38456 Single Stage Deluxe Whirlpool ® WHER 12 Reverse Osmosis System Whirlpool ® WHER 18 Reverse Osmosis System, EcoWater ® 350 & 450. #E1000-228 --- 2 1/2" Diameter. Be sure to order Dow 111 Silicone Sealant to help prevent leaks. Learn More

WFO-900 0-ring compatible with Culligan AquaCleer Good Water Machine Reverse Osmosis RO Systems. Fits AC Series and H Series RO Reverse Osmosis Aqua Cleer Good Water Machines. AC-15, AC-30, AC-5O, H5, H-53, H-8, H-82, H-83, H-84, etc. O-rings help prevent costly leaks. Be sure to use Dow 111 silicone sealant to lubricate the o-rings and provide the proper seal. Better safe than sorry. Learn More

GE Merlin O-rings For Merlin RO Reverse Osmosis System Filter Housings Learn More

John Guest CP-R08I-S 1/4" Replacement O-ring - 5 PER PACK Learn More

John Guest CP-R081-S 1/2" Replacement O-ring- 5 PER PACK Learn More