Waterway Top-Load Filter Tank Lid (511-1000) audio 000 Gallon Capacity] (550803) is

000 Gallon Capacity] (550803) is engineered for ozone applications

1-1/2 inch MPT x 1-1/2 inch MPT design

and this generic version is designed for 22-18 AWG wire with a

Designed for heater plumbing

Waterway Top-Load Filter Tank Lid (511-1000) audio 000 Gallon Capacity] (550803) isThe Waterway 511 1000 top load filter tank lid is designed for compatible filter applications. A tank lid like this is useful because it restores the upper closure of the filter housing, helping complete the assembly when the original lid has cracked, warped, or become difficult to secure properly. A correctly matched lid is important in filter service because it affects how cleanly the unit goes back together and how professional the finished repair