Mesh panels for flexibility and comfort

Internal waterproofing flap with drainage gutter on all pockets and opening

barometer and thermometer with 62mm face diameters mounted on a polished timber board

5mm (7/32")

corrosion resistant contacts

Rule AUTO 500 12v BILGE PUMP RWB807 Lewmar SYNCHRO Mesh panels for flexibility andHow the Automatic Sensing pumps work The S series Automatic sensing RULE bilge pumps work on the principle of impeller resistance. They DON'T need a float switch they are fully Automatic sensing pumps. The pump turns on every 2 1 2 minutes for about 1 secondto sense for water. If water is present, the pump will sense resistance at the impeller and continue to run until the water is removed. After that, it will resume checking for water every 2 1 2