Clean your pool filter or drain your pool with the Blue Devil Backwash Hose! This backwash hose will discharge waste water from the filter and remove it from the filter area. It attaches easily to a tapered fitting inserted into the backwash port of the filter and is held in place with the included hose clamp. It's made of reinforced vinyl for heavy duty 22 mil hosing, ensuring years of quality use. When the warm season is over, you can also use the Blue Devil Backwash Hose to drain your pool!