Pentair American Admiral Swimming Pool Skimmer Weir Door Assembly

This specific assembly is designed exclusively for the Pentair Admiral S20 Skimmer. Before purchasing, verify your skimmer model number to ensure a proper fit, as weir doors are not universal across different skimmer brands or series.

The weir door acts as a one-way gate that controls water flow into the skimmer. It creates a surface tension effect that pulls floating debris into the basket while preventing it from flowing back into the pool when the pump turns off.

Yes, this package contains four replacement weir door assemblies. This is convenient if you have multiple skimmers on your pool or want to keep spares on hand for future maintenance.

Installation is generally straightforward and typically requires no tools. Most users can snap the new weir door into the existing skimmer housing by compressing the spring-loaded pins on the sides of the door.

You should replace your weir door if it is cracked, stuck in the open or closed position, or if it no longer floats freely. A malfunctioning door will significantly reduce your skimmer's ability to capture surface debris, leading to more work for your pool filter.