12-24V 1100gph Automatic Submersible Boat Bilge Water Pump

Automatic 12–24V Submersible Bilge Pump 1100 GPH | Marine Bilge Pump for Boats, Yachts & Workboats (Metric: ≈4,164 L/h), CE & Rohs Certified Product Description Automatic Float Switch Operation:Features a reliable bilge pump float switch that automatically activates when water levels rise and shuts off when levels drop, ensuring hands-free protection for your marine bilge pump system Durable Marine-Grade Construction:Built as a marine bilge pump with water-cooled motor, and anti airlock design and moisture tight seals.Heavy duty motors with stainless steel shafts and tough thermoplastic bodies High-Performance 1100 GPH Output:Powerful 12V /24 DC automatic bilge pump delivers 1100 gallons per hour flow rate with 1m head height, efficiently handling demanding water removal tasks for boats Easy-Maintenance Filter Design:Snap-on filter base allows quick cleaning to prevent debris buildup and maintain optimal performance of your automatic bilge pumps for boats   All-in-one pump & float switch. No additional float switch required. Pump turns on when water level rises & shuts off when water is removed. Pump turns on when water level rises & shuts off when water is removed Voltage: 12V/24V Hose Ports: ID29mm / 1-1/8” Head: 4.0m Built in induction type float switch Will not pump oil – straight motor oil that enters the bilge will not turn the pump on Easy to cleaning and maintenance Anti-fouling impeller And 600GPH (2271 LPH), 750GPH (2838 LPH) and 1100GPH (4163 LPH) models for your choice Feature of Automatic Boat Bilge Pump Model Voltage Flow Rate Head Amps Hose Ports Wire Lead A02-111001 12 1100 GPH 4 m 3.2 ID 29mm / 1-1/8″ 18AWG   1m A02-211001 24 1100 GPH 4 m 1.8 ID 29mm / 1-1/8″ 18AWG   1m Wide Application Perfect for Fishing Boats, Runabouts, Yachts, Cruisers,RV,Swim Pool,Fish Tank ,etc. FAQ – 12–24V 1100 GPH Automatic Submersible Bilge Pump Q1 — Is this pump compatible with both 12 V and 24 V systems? A: Yes. This pump supports 12 V and 24 V DC systems. It is an all-in-one unit with a built-in induction-type float switch, so no additional external float switch is required. For OEM/B2B orders please confirm the required system voltage and request the datasheet for rated current (A) at 12 V and at 24 V so installers can size wiring and fuses correctly. Q2 — What does “automatic / all-in-one” mean and how does the float switch work? A: “Automatic / all-in-one” means the pump automatically starts when water level rises and stops when the water is removed, using the integrated induction-type float switch. Because the switch detects water, straight motor oil or similar oil films will not activate the float switch — the pump is not suitable for reliably removing oil-contaminated bilge fluids. Q3 — What are the available models, hose sizes and maximum head? A: Available flow models: 600 GPH (≈ 2,271 L/h), 750 GPH (≈ 2,839 L/h) and 1100 GPH (≈ 4,164 L/h). Hose port inner diameter is 29 mm (1-1/8″). The maximum head (maximum vertical lift) is 4.0 m; note that actual flow falls as head increases — see the pump curve in the datasheet for performance at intermediate heads. Q4 — How should this pump be installed and maintained? A: Install the pump at the lowest point of the bilge on a stable mount. Fit a strainer to prevent debris entering the intake and ensure the built-in float switch can move or be positioned per the manual (no obstruction). Use marine-grade cable and a fuse sized according to the pump’s rated current (consult the datasheet — typically use a fuse ≈125% of rated current). For maintenance: periodically clean the intake screen and housing, inspect the anti-fouling impeller, and check seals and cable grommets. The design is intended for easy cleaning and low maintenance. Q5 — Is this pump suitable for international buyers (US / EU / AU / NZ) and what should I ask for when enquiring? A: Yes — the product is sold to global marine markets. When enquiring, ask for: the pump datasheet (rated current, pump curve), IP rating and materials, available certificates (CE/UKCA or other regional approvals if required), and whether customized packaging/manuals are needed. Also note the pump will not remove oil from bilges — if your application requires oil removal, request an oil-compatible pump or an oil-separating system.