Improved design and recessed lid protects it from peeling back when ice shifts in your pool Ring tab allows the snap-on lid to be easily removed Faceplate can be installed with lid already in place to prevent water loss Only snap-on lid winter closure system to be patented on the market Winterize your pool with confidence this season. The Super-Pro Skimmer Door works with a variety of swimming pool widemouth skimmers to prevent harmful damage when you close up for the season. The faceplate and lid will let you drain your skimmer while not draining your pool. It has a recessed door which prevents shifting ice from removing the door once snapped into place. The Super-Pro brand offers quality products that you can trust. Product Details: Improved design and recessed lid protects it from peeling back when ice shifts in your pool Ring tab allows the snap-on lid to be easily removed Faceplate can be installed with lid already in place to prevent water loss Only snap-on lid winter closure system to be patented on the market Model AG1091 Fits the Following Widemouth Skimmers: Hayward 1091, PoolStyle, Hydrotools, Pentair, Waterway and others.