Compared across 3 stores. Prices are checked against each store and labelled with when. Store links may earn us a commission. Price via Klarna.
It checks today's price at every store, compares the alternatives and answers in about a minute.
The Rule Shower Drain Kit is a complete 12V sump system for shower and sink drains on boats. It pairs an 800 GPH pump with a float switch in a sealed polycarbonate box, so it runs automatically when water collects. The snap-fit lid, gasketed cover and friction-fit pump and switch make it easy to open and clean without tools. It suits boat owners replacing a tired sump box or adding a shower drain where none exists; rivals like Whale and Attwood offer similar kits, but Rule's tool-free assembly and easy-clean strainer are the draw.
In stock
In stock
In stock
Store links may earn us a commission. Some prices via Klarna.
Lowest price we've seen: $150.12 on Nov 11 at TWIST. Tracked across 3 stores since Nov 11.
Owners of comparable Rule sump kits report reliable automatic operation and easy cleaning. Common complaints center on float switches fouling and pump noise in tight compartments.
The Rule Shower Drain Kit is a fully automatic drain system for a shower or sink. It uses an 800 GPH, 12V pump with a float switch to remove water.
The pump and float switch snap into the base with a friction fit, so no screws are needed. The lid is polycarbonate, impact resistant, and clips on with a sealed snap closure that is easy to remove. A gasketed cover helps keep water from spilling over the edge of the box while the boat is underway.
The scoop strainer is easy to clean, with room to get a hand under it to clear debris. A larger joker valve allows full flow at higher head heights.