Now backed by a 5 year warranty, the non-mercury SuperSwitch is designed for the toughest applications. Design includes marine grade 14 gauge "blocked wire", larger float for increased buoyancy, removable base for easy servicing and a snap switch design capable of handling pumps drawing up to 20 Amps. Dimensions (L x W x H) 5 x 2 x 2 (inches) 127 x 51 x 51 (mm)