• Part Number: Pentair 272505 

The Pentair Plastic Washer For Multiport Backwash Valve Ð 272505 is a replacement washer. This pool washer is designed for the multiport backwash valve. This Pentair washer is made out of plastic and is designed to perform effectively. The Pentair 272505 is a reliable product that will last for a long time to replace the worn out or broken washer.