This 6 inch Skimmer Lid is often used as a deck lid for Pool Auto Fills. It has a single hole in the center, 8 alignment "bumps" around the edges and a single screw hole on one edge.

This quality Skimmer Lid / Thermometer Combo from Pentair Pool Products (Formerly Letro) will eliminate the theft and breakage problems often found with floating or hanging thermometers. They will also stop your floating thermometer from getting stuck in the skimmer all the time.

The thermometer is hermetically sealed and weather resistant. It is also made so outside temperature ...