Rule Rule-Mate 500 Fully Automated Bilge Pump - 24V [RM500B-24] Brand_Maxwell Helm Side = 9/16 -

Helm Side = 9/16 - 18 UNF 2A

This is a very unique feature to bilge pumps because it protects the pump and the vessel

The compact Multivolt™ drive circuitry provides reverse polarity

but without the multiplexer

Provides comfort and safety for all types of water activities

Rule Rule-Mate 500 Fully Automated Bilge Pump - 24V [RM500B-24] Brand_Maxwell Helm Side = 9/16 -Rule Mate 500 Fully Automated Bilge Pump 24V Features: State of the art water sensing technology Pump turns on when water level rises and shuts off when water is removed No float switch required 500 GPH 1893LPH Anti fouling impeller Submersible Ignition protected Includes back flow preventer 3 year warranty Specifications: Type: Electric Gallons Per Hour: 500 GPH Operation: Automatic Volts: 24v Box Dimensions: 4"H x 8"W x 9"L WT: 1. 1 lbs UPC: