Polaris Black Wheel Screw for Vac-Sweep 180/280 Pool Cleaners Hayward Sand Filters It also has a hollow

It also has a hollow opening through the center which allows dirt and debris to be sucked through and out into your filtration system

This current must be controlled to meet new building codes and to prevent corrosive damage to metal pool components

Pentair Kreepy Krauly Legend and Legend II Sweep Hose - Wear Ring (EB10)

Turn off pump and relieve pressure before opening filter

Pentair SuperFlo VST Motor/Drive Assembly | 356289S

Polaris Black Wheel Screw for Vac-Sweep 180/280 Pool Cleaners Hayward Sand Filters It also has a hollowThis wheel screw is particularly made for Zodiac Polaris Black Max pool cleaner models Vac Sweep 180 280. This is made of plastic and is black in color.