--- product_id: 54791544 title: "Rule 35A Rule-A-Matic Float Switch - 12V Automatic Bilge Pump Switch (Mercury Free) | Mercury Free, Durable, Reliable, and Easy to Install" brand: "rule" price: "401 zł" currency: PLN in_stock: true category: "Rule" url: https://www.desertcart.pl/products/54791544-rule-35a-rule-a-matic-float-switch-12v-automatic-bilge store_origin: PL region: Poland --- # 12V power compatibility Tool-free removable base for easy installation Mercury-free, corrosion-resistant build Rule 35A Rule-A-Matic Float Switch - 12V Automatic Bilge Pump Switch (Mercury Free) | Mercury Free, Durable, Reliable, and Easy to Install **Brand:** rule **Price:** 401 zł **Availability:** ✅ In Stock ## Summary > 🌊 Rule the waves with automatic bilge control—because your boat deserves the best! ## Quick Answers - **What is this?** Rule 35A Rule-A-Matic Float Switch - 12V Automatic Bilge Pump Switch (Mercury Free) | Mercury Free, Durable, Reliable, and Easy to Install by rule - **How much does it cost?** 401 zł with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.pl](https://www.desertcart.pl/products/54791544-rule-35a-rule-a-matic-float-switch-12v-automatic-bilge) ## Best For - rule enthusiasts ## Why This Product - Trusted rule brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Effortless Setup:** Quick, hassle-free installation with a removable base and clear wiring instructions—get protected in minutes. - • **Trusted by Thousands:** Rated 4.7 stars by over 1,600 marine pros who refuse to compromise on safety. - • **Precision Performance:** Reliable activation every time, whether docked or cruising open waters, ensuring peace of mind. - • **Automatic Water Defense:** Activates your bilge pump instantly when water rises, so you never worry about flooding. - • **Marine-Grade Durability:** Built tough with mercury-free, corrosion-resistant materials to brave the harshest sea conditions. ## Overview The Rule 35A Rule-A-Matic Float Switch is a 12V automatic bilge pump switch designed for marine environments. Mercury-free and corrosion-resistant, it ensures reliable, automatic pump activation to protect your vessel from water damage. Easy to install with a removable base and backed by a 2-year warranty, it’s the trusted choice for boaters seeking durable, hassle-free bilge control. ## Description Shop Rule 35A Rule-A-Matic Float Switch - 12V Automatic Bilge Pump Switch (Mercury Free) | Mercury Free, Durable, Reliable, and Easy to Install. Free delivery and returns on all eligible orders. ## Features - Reliable Automatic Bilge Control: The Rule 35A Marine Rule-A-Matic Switch ensures automatic activation of your bilge pump when water levels rise, preventing manual checks and safeguarding your vessel against unexpected water accumulation. - Durable, Marine-Grade Construction: Built to withstand harsh marine environments, this bilge pump switch is mercury free and features corrosion-resistant components, including a robust housing and high-quality wiring, ensuring long-lasting performance. - Easy Installation and Hassle-Free Use: Designed for straightforward setup, the Rule-A-Matic switch features a removeable base that integrates seamlessly into your boat's bilge system and is easy to clean or service. With simple wiring and clear instructions, installation is quick and convenient. - Dependable Performance in Every Condition: Engineered for reliability, this float switch activates your bilge pump precisely when needed, ensuring smooth operation whether you’re at the dock or on open water. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B000O8DA3M | | Brand | Rule | | Colour | One | | Customer Reviews | 4.7 4.7 out of 5 stars (1,634) | | Global Trade Identification Number | 00042237095435 | | Included Components | Rule 35A Rule-A-Matic Float Switch | | Item Dimensions L x W x H | 12.7L x 5.8W x 5.7H centimetres | | Item Type Name | Bilge Pump Float Switch - 12-24 Volts | | Item Weight | 13 Grams | | Manufacturer | Xylem | | Manufacturer Warranty Description | Limited 2 year manufacturers warranty. | | Material | Plastic | | Model Number | 35 | | Number of Items | 1 | | Number of Packs | 1 | | Part Number | RM500B | | Power source | Corded Electric | | Product Style | Bilge Pump Float Switch | | UPC | 696582485641 042237095435 617297076870 666668135845 042237083722 071030261204 773975400198 611104328671 779421381288 042237106230 014445389231 012304410966 826713868894 675904094815 072090742719 826713868900 963041571116 | | Unit Count | 1.0 count | | Usage | Boating, Water Treatment, Cruising, Rainy Conditions, Emergencies, Traveling | ## Product Details - **Brand:** Rule - **Colour:** One - **Global Trade Identification Number:** 00042237095435 - **Item weight:** 13 Grams - **Manufacturer:** Xylem - **Material:** Plastic - **Number of Packs:** 1 - **Power source:** Corded Electric - **Product dimensions:** 12.7L x 5.8W x 5.7H centimetres - **Style:** Bilge Pump Float Switch ## Images ![Rule 35A Rule-A-Matic Float Switch - 12V Automatic Bilge Pump Switch (Mercury Free) | Mercury Free, Durable, Reliable, and Easy to Install - Image 1](https://m.media-amazon.com/images/I/41fUsHCz1QL.jpg) ![Rule 35A Rule-A-Matic Float Switch - 12V Automatic Bilge Pump Switch (Mercury Free) | Mercury Free, Durable, Reliable, and Easy to Install - Image 2](https://m.media-amazon.com/images/I/41y+CzQhifL.jpg) ![Rule 35A Rule-A-Matic Float Switch - 12V Automatic Bilge Pump Switch (Mercury Free) | Mercury Free, Durable, Reliable, and Easy to Install - Image 3](https://m.media-amazon.com/images/I/51jbMRg4y0L.jpg) ## Available Options This product comes in different **Color** options. ## Frequently Bought Together - Rule 35A Marine Rule-A-Matic Switch (Mercury Free) - Rule High-Performance 1500GPH, 12 Volt Water Pump for Boats - Bilge Pump with Pressure Switch, Submersible Pump, and Float Switch - Ideal for Marine Accessories, Boating supplies, and Bilge Pumps - Rule 2000 GPH Bilge Pump 12V - Submersible Marine Boat Accessory with 1-1/8" Discharge, Anti-Airlock, Reliable Ignition Protection, Silent Operation, Easy-Clean Strainer - Rust/Corrosion Resistant --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.pl/products/54791544-rule-35a-rule-a-matic-float-switch-12v-automatic-bilge](https://www.desertcart.pl/products/54791544-rule-35a-rule-a-matic-float-switch-12v-automatic-bilge) --- *Product available on Desertcart Poland* *Store origin: PL* *Last updated: 2026-08-15*