This Vac-On Normally Open (NO) switch closes when pump vacuum begins drawing water and opens when the vacuum is broken due to pump shut down or an empty water tank.

This Vac-On Normally Open (NO) switch closes when pump vacuum begins drawing water and opens when the vacuum is broken due to pump shut down or an empty water tank.

This Vac-On Normally Open (NO) switch closes when pump vacuum begins drawing water and opens when the vacuum is broken due to pump shut down or an empty water tank.

For electric pressure washer motors up to 2 HP, this MTM Hydro 1.5 Hg Switch closes when pump vacuum begins drawing water and opens when the vacuum is broken.

For electric pressure washer motors up to 2 HP, this MTM Hydro 2.0 Hg Switch closes when pump vacuum begins drawing water and opens when the vacuum is broken.

For electric pressure washer motors up to 2 HP, this MTM Hydro 2.5 Hg Switch closes when pump vacuum begins drawing water and opens when the vacuum is broken.

For electric pressure washer motors up to 2 HP, this MTM Hydro 4.0 Hg Switch closes when pump vacuum begins drawing water and opens when the vacuum is broken.

For electric pressure washer motors up to 2 HP, this MTM Hydro 4.5 Hg Switch closes when pump vacuum begins drawing water and opens when the vacuum is broken.