Ultra reliable bilge switch, which will automatically operate bilge pumps once water level reaches 2 1/4" (55mm). Features:
Air Operated No Submerged Electrics Safe and Reliable Ignition protected (to ISO 8846 Marine)
Hydro Air Switch for 12 Volt dc, up to 20 amps.
Hydro Air Switch for 24 Volt dc, up to 10 amps.
Replacement air bell.