APEC O-Ring Set for 3.5′ Diameter Reverse Osmosis Water Filter Housings (3 Pack O-RING-SET)

The O-ring-set contains 3 pieces of 3.5 in. O.D. standard industry size O-ring use to prevent leaks when customer need to change 3 pre-filter of 10 in. standard under sink reverse osmosis system. Recommend to change all O-Rings once open the housing. Lubricate with clean lubricant and place in grooves below thread to prevent water leaks.A set of 3 O-rings for housings of APEC ULTIMATE RO systems and ESSENCE RO systems Diameter 3.5 in. O.D. Light weight, easy install and unload Manufactured using certified materials Compatible with other standard 10 in. industry size reverse osmosis housing