American/Pentair CLN/CLR Tank Lid [520 sqft] (178582) airbuttons and this Poolvergnuegen version is

and this Poolvergnuegen version is a black quantity-2 set using the 896584000-563 reference

and chemical exposure are constant

That helps restore timed control with a focused replacement approach

Replacing them as a kit can help make the repair more complete and improve confidence in the heater’s condition

American/Pentair CLN/CLR Tank Lid [520 sqft] (178582) airbuttons and this Poolvergnuegen version isHigh capacity filter lids help close and protect compatible 520 square foot filter bodies while preserving serviceability. This American Pentair CLN CLR Tank Lid [520 sqft] (178582) is engineered for skim filters & parts applications, where maintaining dependable sealing, fastening, flow distribution, or structural support is essential to overall system reliability. It supports consistent operation by helping connected equipment perform as intended