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Your cart is empty.These durable O-Rings are compatible with APEC Essence and Ultimate reverse osmosis systems and can be used on other 10" standard sized filter housings as well. They are light weight and asy to install, working great with Dow Cornering 111 Compound lubricant or any other brand food type lubricant for maximum leak seal. Recommend to replace O-Rings every 1-2 years.
S
July 20, 2025
These fit, as they should once, I figured out how to remove the old ones. It was easy to replace them. They are a good value for the money. The thickness matches, where it needs to to keep everything sealed. They seem to be of higher quality and they appear to be very durable
Luis Ruiz
July 14, 2025
These worked perfectly.
patricia a winters
July 13, 2025
Used in conjunction with point of use water filtering kits. Helps prevent leaking filter housings.Fits apec reverse osmosis pre filter housings.
Customer
July 11, 2025
They work fine but these should really be included with the filter cartridge since they recommend replacement with every filter change. I rank these high though because after a year on the system, they still looked like they were brand new and could be used again. I still changed them just because they are cheaper than a flooded house and not worth the risk.
Birdman
June 2, 2025
Seemed a bit oversized for the same setup I've used for years.
LowSociety
May 13, 2025
Great fix, fast delivery
Happy consumer
May 9, 2025
Good idea to change gaskets when changing the filters to keep any leaks from forming preventative maintenance
Omar Dawood
May 7, 2025
I tried the APEC Water Systems SET 3 Pcs 3.5" O.D. Replacement O-Ring, and it's a lifesaver. The three-piece set ensures a snug fit for reverse osmosis water filter housings. The black O-rings are durable and efficient, sealing tight to prevent leaks. If you're maintaining a water filtration system, this replacement set is a reliable choice.
peter p
April 30, 2025
Original replacement parts.
Giz
April 26, 2025
Les trois seal ont très bien fonctionné système Osmos rev 5 stage
Hijinx
February 18, 2025
One of our RO tubes was leaking and we had to replace the o rings. It took a while to find the right size but when we did it worked perfectly. No more leaking.
Bo Wang
December 13, 2024
A little larger than the original, it’s ok for installation and no leak
Mike
November 19, 2024
Needed a set of three for my RO water system so this seemed perfect. On install though, one of the three rings was bigger than the other 2, and does not fit in the groove it needs to be installed in so I had to re-use one of the o-rings I was looking to replace. So they work great if the size is right, but size appears to be inconsistent, even in the same package.
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