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Your cart is empty.This 3 pack O-Rings by iFilters are used to seal water filter housings. It has an ID of 3.5" and made of nitrile butadiene rubber (Buna-N) for flexibility and resistance to abrasion and tearing. Fits many standard size housings for that use 10" filters, which are used in various applications, such as drinking water purification, whole house, industrial processes, and more. The ORING-25 is the Original OEM replacement for the following iFilters filtration systems: LWH-D, LWHSD, LWHGAC, CNTP-1W, CNTP-1C, U200UV, U200, U300UV, U300, RO-550, RO-575, RO-5100, and RO-S50. Compatible with filtration systems made by: iFilters, APEC, iSpring, Geekpure, Olympia Water Systems, and many more Fully compatible: APEC ROES-50, ROES-PH75, ROES-UV75, RO-90, RO-PH90, RO-PERM, RO-PUMP; iSpring RCC7, RCC7P, RCB3P, RCC7AK, RCC7P-AK, RCC7U, RCC1UP, RCC7AK-UV, RCC1UP-AK, RCC7D, WCC31, CT10, CKC1C, HC16, WCB32C; Geekpure RO5; Olympia Water Systems OROS-50, OROS-80, OROS-80-ALK. Whats included: This item includes three (3) O-Rings with "iFilters" branded packaging. Manufactured and warrantied against defect for one year from purchase date by iFilters. 3rd Party purchases are not warranted. "iFilters" is a registered trademark of iFilters.
JP
September 6, 2025
Great replacement to keep the filters from leaking. My RO is about 20+ years old, this fits perfectly and solves the leak problem.
Frank
August 28, 2025
Fit well and working fine. It's great to have the standard parts available for replacement.
Ron B.
April 27, 2025
The O ring worked and was a good quality product.
JOSH
March 16, 2025
Did not fit.
Robert
March 3, 2025
VERY FAST delivery, and a perfect fit for my 10" WaterGuard Reverse Osmosis water filter. Hard-to-beat price as well. What else can I say? Whenever these wear out, I will likely do business with this provider again!
Sean Ly
February 9, 2025
Great product
Alan-NYC
January 24, 2025
I have a R.O. water filter under my kitchen sink. One of the filter tubes began to leak at the top no matter how much I would tighten it. This O ring did the trick. It fit perfectly in the filter tube so no more leak.
Lupe
December 23, 2024
I need this to put the curtains. They were the right size and good value for your money
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