Pleatco PA55 fits the following filter models:
Hayward Easy Clear C550
Both top and bottom end caps are open w/molded gasket 3" inside diameter
Pleatco PA55 replaces the following filter cartridges:
Hayward C550 pool filter part number CX550RE or C-550-E
Muskin Spas 58039
Note: Can also use Unicel C-7455
Searching for more Hayward C550 filter parts?