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- Catalogue code
- 1616724 1616725
042237085184
the Hydro Air control allows safe, reliable and fully automatic operation of the pump. Water rising or falling in the bell transmits air pressure that opens and closes the pump switch.
Easy to install, the switch and cable should be mounted in a conveniently dry place. Only the plastic bell containing air is in the bilge, opens to about 50 mm. and closes to 13 mm. The kit includes the switch, plastic bell and a 3