APEC Water Systems Replacement ORing for ROES-50 3.5″ OD Reverse Osmosis Water Filter Housings, O-Ring (3 pcs O-Ring-Set-B) : Tools & Home Improvement

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.