Designed for the toughest applications and backed by a Rule 5 year warranty. Heavy duty double insulated blocked wiring and a wide, free action float give superior buoyancy and performance. Removable snap-on base for easy fitting, cleaning and servicing. The SuperSwitch is suitable for any brand of submersible bilge pump 12v – 24v – 32 volt with a maximum draw of 20 amp. It suits all models of Rule DC non-automatic pumps. Base footprint : 66 x 45mm. 135mm length x 54mm width.