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O-Rings & Sealant

O-Rings & Sealant

Replacement O-rings For Slim Line, Big Blue And Standard Water Filter System Housings

Dow 111 Silicone Sealant And Lubricant For O-rings

If you do not know the correct O-ring size for your system, you will need to open the filter housing to measure the diameter of the O-ring. The same filters fit in different size filter housings using different size O-rings. The O-ring size is not tied to the filter, but to the filter housing.

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  1. $4.99
    O-Ring - Be sure to use Dow 111 Silicone Sealant to help prevent leaks. Learn More
  2. Regular Price: $8.99

    Special Price $6.99

    As low as: $5.49
    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
  3. Regular Price: $12.99

    Special Price $9.99

    Aquatec 1/2" John Guest to 3/4" Quick Disconnect With Buna N O-ring For Merlin Pumps. Learn More
  4. Regular Price: $8.99

    Special Price $6.99

    As low as: $5.99
    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
  5. Regular Price: $8.99

    Special Price $4.99

    As low as: $3.29
    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
  6. Regular Price: $8.79

    Special Price $5.49

    John Guest CP-R121-S 3/8" Replacement O-ring - 5 PER PACK Learn More
  7. Regular Price: $13.99

    Special Price $9.99

    As low as: $6.99
    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
  8. Regular Price: $7.79

    Special Price $4.99

    As low as: $3.99
    John Guest CP-R08I-S 1/4" Replacement O-ring - 5 PER PACK Learn More
  9. Regular Price: $6.99

    Special Price $5.99

    Countertop-o-ring (Countertop Filtration System Replacement O-ring 239) Learn More
  10. Regular Price: $8.99

    Special Price $5.99

    As low as: $4.59
    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
  11. Regular Price: $12.99

    Special Price $9.99

    Frigidaire ® WFCB / WF1CB Compatible Replacement O-Ring. Learn More
  12. Regular Price: $5.99

    Special Price $3.99

    As low as: $1.79
    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

    Learn More
  13. Regular Price: $15.99

    Special Price $11.99

    GGN-SS-O-RING KIT for GGN-SS-CTF Systems. Learn More
  14. Regular Price: $12.99

    Special Price $9.99

    As low as: $5.99
    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!

    Learn More
  15. Regular Price: $8.99

    Special Price $5.99

    John Guest CP-R081-S 1/2" Replacement O-ring- 5 PER PACK Learn More
  16. Regular Price: $5.69

    Special Price $4.99

    As low as: $3.00
    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
  17. Regular Price: $24.99

    Special Price $17.49

    As low as: $13.99
    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
  18. Regular Price: $7.99

    Special Price $4.99

    As low as: $2.79
    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
  19. Regular Price: $13.99

    Special Price $9.99

    As low as: $6.99
    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
  20. Regular Price: $17.99

    Special Price $12.99

    As low as: $9.49
    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
  21. Regular Price: $7.99

    Special Price $4.99

    As low as: $3.79
    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
  22. Regular Price: $8.99

    Special Price $4.99

    As low as: $3.39
    Hydrotech ® 34201026 & Aquafier O-ring for filter housing. Fits Hydrotech, Aquafier and Hydrofiner systems. 2 1/2" diameter Learn More
  23. Regular Price: $8.99

    Special Price $5.99

    As low as: $3.99
    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
  24. Regular Price: $8.99

    Special Price $4.99

    As low as: $3.29
    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
  25. Regular Price: $7.99

    Special Price $4.99

    As low as: $3.49
    Culligan ® OR-34 replacement O-ring. # 151120 Fits Culligan HF-150, HF-160, HF-360, and Ace 45025, 46764, 49560. Learn More
  26. Regular Price: $8.99

    Special Price $5.99

    As low as: $4.39
    Culligan ® OR-38 replacement O-ring. # 151121 Fits Culligan US-550, RVF-10, US Filter RO-2127, RO-3167, Ace 4158515. Learn More
  27. Regular Price: $14.99

    Special Price $9.99

    As low as: $7.99
    Culligan ® OR-100 replacement O-ring. Fits Culligan HD-950 Big Blue. # 151122 Learn More
  28. Regular Price: $14.99

    Special Price $9.99

    As low as: $7.99
    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
  29. Regular Price: $8.99

    Special Price $5.99

    As low as: $4.49
    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
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Be sure to check our Parts Departmentfor important parts such as TDS Testers, Replacement Tanks, O-rings,Housing Wrenches and more parts for your reverse osmosis pure water system.