Polaris 3900 Sport/280 Vac-Sweep BlackMax All Purpose Black Bag | K17 Waterway Diatomaceous Earth Filters It has an opening through

It has an opening through its middle where it can be fitted over the top of the sweep hose

meets ASTM D2564

Includes complete internal components: impeller

The hook catches the knob on the edge of the union nut and slowly loosens the threads

Its purpose is to take the dirt and debris that is collected via the water management system (and vortex that it creates via the venturi jets) and shoots it up through this tube and into the debris bag where it can then be properly disposed of

Polaris 3900 Sport/280 Vac-Sweep BlackMax All Purpose Black Bag | K17 Waterway Diatomaceous Earth Filters It has an opening throughPolaris 3900 Sport 280 Vac Sweep BlackMax All Purpose Black Bag (K17) This bag was designed to store all the dirt, debris, and other forms of mulch that are sucked up off your pool's surface. It is made from a durable vinyl like material that is not only strong but lightweight. Also, the net like design of this material allows water to flow effortlessly through the bag so that way it doesnt impede the cleaner in any way. This part sits atop of the