Pentair Admiral S20 Flap Weir, 2" Slip | 84420805 Throw Pillows or the lower drain connection

or the lower drain connection no longer seals after opening it for service

Cover size: 22 x 46

Sized for a 21 ft round pool

This approach supports reliability in both residential and commercial installations

This Swim-N-Spike volleyball system provides a complete pool volleyball setup including anchors

Pentair Admiral S20 Flap Weir, 2" Slip | 84420805 Throw Pillows or the lower drain connectionWhat This Part Is Used For Pentair 84420805 Admiral S20 Flap Weir 2in Slip is a replacement flap weir for compatible Pentair Admiral skimmer systems. It helps regulate water entry into the skimmer throat. Why This Part Matters A properly functioning weir improves surface skimming efficiency. Replacing a broken flap restores consistent debris capture. Proper water flow into the skimmer supports overall filtration performance. Key Features and