Top 10 Billet Thru-Hull Water Fitting Bilge Pump – Boat Bilge Pumps

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1. attwood


12-Volt, 29-Inch 16-Gauge Wire, attwood 4505-7 Sahara S500 Automatic Bilge Pump, 1.5-Amp Draw, ¾-Inch Interior Diameter Hose

attwood #ad - Comes with a 29-inch length of 16-gauge caulked and tinned copper wire, and uses a ¾-inch interior diameter hose. 12-volt, 1.

5-amp draw pump is rated for 500 GPH performance at open flow at voltage of 13. 6 volts DC. Compact and durable package includes pump, strainer, wire seals, and mercury-free switch in one unit. Reliably provides bilge water pumping for boats of any size. Also convenient and useful for boats of any size. Installs quickly and easily in tight spaces, mounts horizontally only. Meets automatic switch pump requirements for any vessels 20 feet and over with sleeping accommodations.
Brandattwood #ad
ManufacturerAttwood #ad
Height8.12 Inches
Length7.37 Inches
Weight0.8 Pounds
Width7.75 Inches
Part Number4505-7



Seachoice 18231 3-Way Y Fitting – Fits 3/4 Inch ID Hose – Black Plastic

SEACHOICE #ad - Fabricated from rust-free black plastic. Perfect for plumbing hard-to-reach areas. 3-way "y" fitting design. Fits 3/4 inch inner diameter ID hose. Barbed connectors for a secure hold.
ManufacturerSeachoice #ad
Height6.75 Inches
Length3.75 Inches
Weight0.11 Kilograms
Width0.75 Inches
Part Number50-18231



SEAFLO Thru Hull Fittings 1-1/4"

SEAFLO #ad - For 1-1/4" Hose. Dimensions: d - 41mm, d1 - 32mm, di - 24mm. Dimensions: h - 97mm, d - 67. 5mm, d1 - 33mm. 4-year warranty!! Color: White.
BrandSEAFLO #ad
ManufacturerSEAFLO #ad
Height3.82 Inches
Length2.66 Inches
Weight0.15 Pounds
Width2.66 Inches
Part NumberSFDS1-1250-01

4. Rule


Rule 500 GPH 25SA Electronic Sensing Bilge Pump-500

Rule #ad - Stainless-steel shaft. Submersible and ignition protected. High efficiency, low amp motor. Completely automatic with manual override; no float switch needed. Includes backflow preventer.
BrandRule #ad
ManufacturerFlow Control, LLC #ad
Height3 Inches
Length7 Inches
Weight0.8 Pounds
Width7 Inches
Part Number25SA

5. Amarine Made


Amarine-made 12v 1100gph Auto Boat Bilge Pump Automatic Submersible Boat Bilge Water Pump A: 1100gph Auto pump

Amarine Made #ad - No power use until pump is activated by internal float switch when water level rises. Equipped with built in electronic controlled reed sensor system for easy fully automatic operation. Compact, automatic, fully submersible electric pump. Built-in float switch! No separate float switch is needed. Compact, efficient, long life motor ; Rustproof and corrosion resistant; Stainless steel shaft; High-impact durable plastic housing.
BrandAmarine Made #ad
Manufactureralfa marine (Shanghai) #ad
Part Number4333793733

6. Ogrmar


Ogrmar Automatic Boat Bilge Pump Float Switch Moisture Tight Seals 12/24/32VDC Ignition Protected Mercury

Ogrmar #ad - Turn pump on when water level reaches 2” 51mm ; Turn pump off when water level reaches 07” 19mm. Long life, switching frequency up to 10 million times; Ultrasonic welding, reliable and secure, forming a seal, not leaking. Wire length: 1m; wire gauge size: 18AWG. Max amps 12volts: 20a; max amps 24volts: 10a; max amps 32volts: 8A. Heavy duty flow switch is designed for the toughest applications; Environmentally responsible. Switch is removable from the base for easy cleaning.
BrandOgrmar #ad
ManufacturerOgrmar #ad
Height0.79 Inches
Length2.36 Inches
Weight0.22 Pounds
Width1.18 Inches
Part NumberBBPFS-1



SAILFLO Automatic Submersible Boat Bilge Water Pump 12v 750gph Auto with Float Switch 3/4 inch outlet

SAILFLO #ad - All-in-one pump & switch – no float switch Required-Will Turn On Automatically When Water Rises Past Strainer. Snap-off strainer for Easy Cleaning. Pump turns on when water level Rises & Shuts Off When Water is Removed. Easy installation instructions for either 2 or 3 wire setup. To panel switch, automatic, or both. Heavy duty motors with Stainless Steel Shafts and Tough Thermoplastic Bodies.
BrandSAILFLO #ad
Manufacturersailflo #ad
Weight1.1 Pounds
Part NumberHYBP1-G

8. Shoreline Marine


Shoreline Marine Bilge Pump Plumbing Kit with 3/4 Inch X 5 Feet Hose

Shoreline Marine #ad - 3/4 inch Thru Hull. Verify bilge pump dimensions before purchase. 2 stainless Steel Hose Clamps. 3/4 inch id x 5 feet corrugated hose. Must be used with a bilge pump equipped with a 3/4 inch od outlet barb only.
BrandShoreline Marine #ad
ManufacturerBig Game International #ad
Height2.91 Inches
Length8.19 Inches
Weight0.18 Pounds
Width7.4 Inches
Part NumberSL52253



MAXZONE Automatic Submersible Boat Bilge Water Pump 12v 1100gph Auto with Float Switch Blue, Automatic

MAXZONE #ad - Built-in float switch! No separate float switch is needed. Wire leadm: 1m; outlet diameter: 29mm/ 1. 14 inch 1-1/8"; width: Approx. Flow rate gph: 1100gph; volt: 12v; currenta: 3. 8a; headm: 3. 0m. No power use until pump is activated by internal float switch when water level rises. Equipped with built in electronic controlled reed sensor system for easy fully automatic operation. 81mm.
BrandMAXZONE #ad
ManufacturerSailflo #ad
Weight1.21 Pounds
Part NumberHYBP1-G1100-02

10. attwood


White Finish, Attwood 3877-3 Polypropylene 90-Degree Thru-Hull Connector

attwood #ad - Requires 1 inch installation hole. Fits ¾ inch inside diameter hose. Max hull thickness: 1 inch. Flange diameter: 1-1/2 inch. Ensures a reliable thru-hull connection.
Brandattwood #ad
ManufacturerAttwood #ad
Height3.25 Inches
Length4.5 Inches
Weight0.05 Kilograms
Width9.25 Inches
Part Number3877-3