Check the listing for details. Rule-A-Matic Model 35A BILGE PUMP Float Switch. Condition: New. Listed at 31.99 USD. The Rule-A-Matic Model 35A Bilge Pump Float Switch is a reliable and efficient component for maintaining a boat's bilge system. Designed by the trusted brand Rule, this float switch is specifically engineered to effectively manage the pumping of bilge water. With the manufacturer part number 35A, this product ensures compatibility and functionality for a wide range of boat models and applications. This float switch is a crucial part in the plumbing and ventilation system of a boat, providing a hassle-free solution for bilge management.The Rule-A-Matic Model 35A Bilge Pump Float Switch is a reliable and efficient component for maintaining a boat's bilge system. Designed by the trusted brand Rule, this float switch is specifically engineered to effectively manage the pumping of bilge water. With the manufacturer part number 35A, this product ensures compatibility and functionality for a wide range of boat models and applications. This float switch is a crucial part in the plumbing and ventilation system of a boat, providing a hassle-free solution for bilge management.