Pentair Admiral S20 Flap Weir, 2" Slip | 84420805 Bastille Maintains sealed suction chamber

Maintains sealed suction chamber

Service technicians identify it when diagnosing reduced flow or abnormal pump noise

this valve helps maintain optimal filtration performance with reliable backwash control

Slip plate

Pentair Admiral S20 Flap Weir, 2" Slip | 84420805 Bastille Maintains sealed suction chamberWhat 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