APEC Water Systems Replacement ORing for ROES-50 3.5" OD Reverse Osmosis Water Filter Housings, O-Ring (3 pcs O-Ring-Set-B)

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.

المنتج صينى و الوصف اونطه مش امريكى و كاليفورنيا بس شغال لولا انى محتاجه كنت رجعته علشان يتعلم التاجر الصدق فى الوصف و طبعا السعر غالى بما انه صينى مش امريكى و محطوط فى كيس غريب

Les trois seal ont très bien fonctionné système Osmos rev 5 stage

Original replacement parts.

These Rings fit Apex type A housing but $5 for the little squeeze of Grease is a joke you can buy the O-rings themselves for $7 but definitely use Grease