Name: Attwood 4145-1 Marine Shower Sump System 750 GPH 24V Standard Box Drainage
Brand: Attwood
SKU: 4145-1
Price: 119.32 GBP
Availability: OutOfStock

Attwood 4145-1 Marine Shower Sump System 750 GPH 24V Standard Box Drainage

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£119.32

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Attwood 4145-1 Shower Sump 750 GPH 24V

Standard Box Automatic Gray Water System

The Attwood 4145-1 Shower Sump System is a high-capacity, 24-volt drainage solution designed to manage grey water from showers and sinks on marine vessels. This "Standard Box" unit comes pre-assembled with a powerful 750 GPH pump and an integrated automatic float switch, ensuring efficient water removal without manual intervention. The compact design and multiple inlet options make it a versatile choice for both new installations and direct replacements of legacy Attwood units.

RELIABILITY: Engineered with a clear, gasket-sealed lid to prevent overflows and an internal air vent to eliminate air-locks, providing consistent performance in demanding marine environments.

Key Features

✔ 750 GPH Capacity: High-volume flow for rapid drainage.
✔ Multi-Port Inlet: Accommodates 3/4", 1", 1-1/8", and 1-1/2" hoses.
✔ Automatic Operation: Includes internal float switch.
✔ Easy Maintenance: Clear lid and removable mesh strainer for quick inspection.
✔ Safety Certified: Meets or exceeds ABYC and USCG standards.

Technical Specs

Flow Rate	750 GPH
Voltage	24V DC
Fuse Size	2 Amp
Outlet Size	3/4" (19mm)
Wire Lead	22" (approx. 56cm)
Box Dimensions	8-1/8" W x 4-1/2" H

Compatibility / Fitment Guide

Application	Voltage System	Notes
Marine Showers	24V DC Only	Ideal for below-waterline drainage.
Galley Sinks	24V DC Only	Multiple inlets allow shared drainage.
OEM Replacement	24V DC Only	Direct swap for older Attwood 4145 units.

OEM Cross Reference

Attwood MPN	4145-1
Attwood Legacy	4145
Other References	S750 24V Standard Sump System

Questions & Answers

Is this a genuine original part?

Yes, this is a genuine Attwood Marine component, ensuring full compatibility with Attwood plumbing and electrical systems.

How do I know if it is compatible?

We recommend checking the SKU/MPN (4145-1) and ensuring your vessel operates on a 24V electrical system. This unit is the "Standard Box" version.

Can I connect multiple drains to this box?

Yes, the box features multiple inlet ports (3/4", 1", 1-1/8", and 1-1/2") allowing you to connect several sinks or a shower and sink to the same unit simultaneously.

Note: Please verify your original part number and system voltage (24V) before purchasing. For any technical queries, contact us at 4boats.co.uk.

For the products under £150 the shipping is £6.99.

Free delivery for most items over £150.

Why choose us

QUALITY MARINE PARTS

We source dependable marine products from established suppliers and continually refine our range using customer feedback.

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We work with trusted marine suppliers and distribution partners to provide reliable parts, equipment and fulfilment.

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Every order is checked by the 4Boats team. Contact us before ordering if you need help with part numbers, compatibility or availability.

Attwood 4145-1 Marine Shower Sump System 750 GPH 24V Standard Box Drainage