Whale Float Switch with Auto Field Sensor 12/24V Electric The heavy duty model is

The heavy duty model is available from 16-20ft and is of 3mm construction which comes as standard with the following:

Evinrude Johnson OMC Engine Part ROD 0337496 337496

406 S : yes

Tube OD: 4mm

Whale Float Switch with Auto Field Sensor 12/24V Electric The heavy duty model isElectric field sensor automatically senses water levels & switches on the bilge pumps Automatically switches on when 51mm (2") of water is sensed and turns off when water drops below 13mm (1 2") W BE9006 model built in 30 second off delay for efficient operation, prevents cycle in small sump installations or enables lower drain than 13mm (1 2") W BE9003 Electric Field Sensor Switch W BE9006 Electric Field Sensor Switch With 30 second time delay