The 6 Best reverse osmosis O rings (2023 reviews)

If you often find yourself scrambling for appropriate and satisfactory ring, apec water systems reverse osmosis o ring should be your first option for buying. If you have an APEC water system with the 3 filter housing that these work fine. They each perform a different function in cleaning, filtering, and purifying the water. The grease prevents friction loads which can damage rubber parts and can give a false indication of the torque applied.

These are industry standard 3.5", designed for APEC pre filter housings. These are 70 durometer O-rings and will compress and loose their shape and seal over time. They work on filters and make sure to put Vaseline on rings sets and don’t tighten them down real tight. These 3.5 inch O-rings fit this filter housing. It helps get the cartridges tighter and thus more water proof than they might have otherwise been. It is a must when changing out your filters.

Why We Like This:

Works well in the filter housings and easy to put in
Made to fit the three large filter housing tubes
Lubricate with clean lubricant and place in grooves below thread to prevent water leaks
Light weight, easy install and unload

Peatovie reverse osmosis O ring

Buy on Amazon

These O-rings fit well into the Krystal Pure KR. It can be used in conjunction with any food grade lubricant to provide the largest leak seal for your water filter. The O-rings are small and portable, easy to install and remove. It is made of high quality durable rubber.

Why We Like This:

Compatible for most most industry standard size 10” filter housings
Works on a bulk reef supply
Delivers what they promise

Fi Ifilters, Nature provides The Water... we supply The Purity! reverse osmosis O ring

Buy on Amazon

The fi ifilters, nature provides the water... we supply the purity! Reverse osmosis o ring's material feels more premium than its price would suggest. This 3 pack O-Rings by iFilters are used to seal water filter housings. It 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. It includes three (3) o-rings with "ifilters" branded packaging. It fits perfectly in the filter tube so no more leak. It has an ID of 3.5" and made of nitrile butadiene rubber (Buna-N) for flexibility and resistance to abrasion and tearing.

Why We Like This:

Good investment for long term
New and hot release

Captain O-Ring reverse osmosis O ring

Buy on Amazon

The captain o-ring reverse osmosis o ring is capable of outshining several other ring featured in this list in overall features for the price point. Replacement o-rings (also called seals or gaskets) are used to repair your leaking water filter housing.

Why We Like This:

One of the new comers and featured product
Good investment for long term

Mejiao reverse osmosis O ring

Buy on Amazon

We would, of course, be remiss if we didn't mention mejiao reverse osmosis o ring for daily purpose.

Why We Like This:

One of the new comers and featured product
Good brand reputation

Nakkaa reverse osmosis O ring

Buy on Amazon

The nakkaa reverse osmosis o ring might be a relatively new release, but it's still nothing short of impressive this year. O-rings are small and portable, easy to install and remove. It can be used in conjunction with food grade lubricant to provide the largest leak seal for your water filter. It is made of high quality durable rubber.

Why We Like This: