Fitment: Compatible with APEC Essence and Ultimate reverse osmosis systems and can also be used in most industry standard size 10'' filter housings
Model compatibility: Our 3.5" O-Ring is compatible with APEC ESSENCE RO devices produced after June 2013 and ULTIMATE RO devices produced after May 2015; The Other version A 3.5" o.d O-Ring is compatible with APEC ESSENCE RO devices produced before June 2013 and ULTIMATE RO devices produced before May 2015
Material: Our 3.5" o.d water filter o-ring is Made of high quality nitrile rubber that is flexible, wear-resistant and tear-resistant, not easy to aging and oxidation, longer service life; Check the specific model and year of your system to determine which version of O-Ring you need
Easy to install: The replacement O-rings are flexible, easy to install and remove, durable and unbreakable. Simply remove the broken O-ring, apply silicone grease to the O-ring that needs to be replaced, and place it back in the groove
Seal leak: The water filter housing o-rings can be combined with any food-grade lubricant to provide a good seal and allow the filter to maintain optimum filtration efficiency