Lids & o-ringsWaterway 6" Trap Lid O-ring 805-0436
A flattened or cracked o-ring is the most common reason a pump sucks air, won't prime or leaks. Fits Waterway.

$81.99 + $10.99 shipping
A flattened or cracked o-ring is the most common reason a pump sucks air, won't prime or leaks.
Speck Lock Ring with Handles (2015+) Strainer Cover (2921116022) by Speck Pumps. A flattened or cracked o-ring is the most common reason a pump sucks air, won't prime or leaks.
A flattened or cracked o-ring is the most common reason a pump sucks air, won't prime or leaks. Match the part number to your pump, filter or valve, and lube new o-rings with silicone or Teflon lube.
Lids & o-ringsA flattened or cracked o-ring is the most common reason a pump sucks air, won't prime or leaks. Fits Waterway.
Lids & o-ringsA flattened or cracked o-ring is the most common reason a pump sucks air, won't prime or leaks. Fits Pentair.
Lids & o-ringsA flattened or cracked o-ring is the most common reason a pump sucks air, won't prime or leaks. Fits Hayward.
Lids & o-ringsA flattened or cracked o-ring is the most common reason a pump sucks air, won't prime or leaks. Fits Hayward.