Rule 800 GPH Legacy Shower Drain Replacement Pump - 12V - Fits 97A & 98A Shower Drain Boxes - 20RSB

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Rule 800 GPH Legacy Shower Drain Replacement Pump (12V) – 20RSB

Keep your marine gray water system running smoothly with the Rule 800 GPH Legacy Replacement Pump (Model 20RSB). Specifically designed as a direct drop-in replacement for the classic Rule 97A and 98A shower drain boxes, this 12V pump ensures you don’t have to replace your entire sump system when the motor reaches the end of its life.

Built with Rule’s legendary standards for durability and moisture protection, the 20RSB delivers high-capacity flow in a compact, easy-to-install package.

Key Features & Benefits

• Perfect Compatibility: Engineered specifically to fit Legacy Rule 97A and 98A shower drain systems.

• High-Flow Performance: Moves up to 800 Gallons Per Hour (GPH), ensuring your shower sump never overflows

• Reliable 12V Power: Optimized for marine electrical systems with low amp draw to preserve battery life.

• Quiet & Efficient: Features a smooth-running motor that operates quietly beneath the cabin floor.

• Rugged Construction: Ignition-protected and built with a stainless steel shaft to withstand the harsh marine environment.

Technical Specifications

Why Choose the Rule 20RSB?

Replacing a shower drain pump can be a cramped, difficult job. The Rule 20RSB simplifies the process by matching the exact footprint and specifications of your original Legacy equipment. Instead of replumbing your entire drain box, simply swap the pump and get back to enjoying your time on the water.

Note: This is a replacement pump motor only. It is intended for use inside existing Rule shower sump boxes.