Thrust Innovation Watt Hole Bilge Switch Hole For Rotary Bilge Switch HP57-3020 and Primer Bulbs.

The Watt Hole was designed to help keep your rotary switch out of harm’s way to prevent breakage or injury. Simply drill a hole and install the entire unit and wire in the switch or use an existing rotary switch. Also works with primer bulbs!

NOTE: Rotary Bilge Switch and Primer Bulb Sold Separately.