Rule-Mate 500 GPH Automatic Bilge Pump, 12V
Fully automatic 500 GPH bilge pump with a built-in electronic float. No separate switch to install or fail.
High-capacity automatic bilge pump for bigger hulls and primary pump duty.
โ Free shipping ยท Ships in 1โ2 business days ยท In stock
Not sure it fits? Ask a technician โThe Rule-Mate 1100 is the go-to primary pump for bay boats, walkarounds and offshore center consoles. Big flow, fully automatic operation and Rule build quality make it an easy upgrade for peace of mind on longer runs.
| Brand | Rule |
|---|---|
| Model | RM1100B |
| Flow (open) | 1100 GPH |
| Voltage | 12V DC |
| Outlet | 1-1/8 in. |
| Switch | Integrated automatic |
| Item # | GMS-1003 |
Specifications are provided by the manufacturer. Always verify fitment for your vessel.
Most orders ship within 1โ2 business days from authorized distribution and arrive in 2โ6 business days in the continental US.
If you're not sure, call or text (352) 604-0577 with your boat or engine details and a technician will confirm before you order.
Yes. New, uninstalled items in original packaging can be returned within 30 days.
Fully automatic 500 GPH bilge pump with a built-in electronic float. No separate switch to install or fail.
Step up to 750 GPH of fully automatic protection for 18โ24 ft boats.
Proven non-automatic 1100 GPH pump. Pair with a float switch for a reliable, serviceable system.
Electronic bilge switch with no moving parts that ignores oil sheen and only switches on water.