The Water Filter O-ring is an OEM replacement part for Frigidaire refrigerators. It is specifically designed to create a secure seal for the water filter, preventing leaks and ensuring that the filtration system operates effectively. Causes for a malfunctioning Water Filter O-ring can include wear and tear from regular use, improper installation that leads to damage, or material degradation that affects its sealing capability. Symptoms of a bad Water Filter O-ring include: Water leaks around the filter area Reduced effectiveness in water filtration The need for frequent filter replacements due to compromised seals Visible damage or wear to the O-ring This OEM Frigidaire part is also compatible with Electrolux, Gibson, Kelvinator and some Kenmore models.218904301 (AP2115459) replaces 5303310481, 775622, AH429239, EA429239, PS429239.