Rule automatic float switches are the world's largest selling float switches. They are designed to automatically activate your Non-Automatic bilge pump when water is present. They are simple. non-mercury, environmentally responsible switches. All are ignition protected, ultrasonically welded and sealed to give reliable, trouble-free service. The wiring is blocked to keep out moisture and exits the top of the switch to keep them high and dry. No battery drain and no exposed metal to corrode. This non-mercury float switch has set the standard for the industry for years. Its new improved blocked wiring for greater durability and water resistance has again raised the standard. Removeable snap-on base for easy fitting, servicing and cleaning. It is suitable for pumps of any voltage up to a maximum pump draw of 14 amps. It suits all Rule non-automatic pumps except the 3700 & 4000GPH 12v pumps. 2 Year limited warranty. Base Footprint : 66mm x 45mm 127mm length x 45mm width

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Delivery Approximately 3 Days