SEAVIEW Multi-Cable Rectangle Cable Gland - Marine Waterproof Seal

In this review of the SEAVIEW Multi-Cable Rectangle Cable Gland the bottom line is simple: it is a practical, weatherproof solution for routing multiple cables through a hull, deck or bulkhead without removing connectors. The reviewer found it especially useful for marine and outdoor solar runs where a tidy, leak-resistant entry is needed; the low-profile housing, included drill tubes and split-seal design make installation faster and more reliable than improvised seals. For installers who need a compact, marine-grade cable pass-through, this product delivers.

Key Features

• Waterproof Cable Routing: Provides a watertight passage for cables and connectors, offering peace of mind in wet or marine environments.
• Marine-Grade Materials: Offered in marine grade plastic or 316 stainless steel for corrosion resistance and long service life where salt and spray are present.
• Wide Compatibility: Accepts cable diameters up to 0.5 in and connectors up to 0.67 in so it works with a broad range of power and signal cables.
• No Connector Removal Required: The split seal design lets you pass cables with attached connectors, saving time during installation and retrofit.
• Installation Aids Included: Four brass drill tubes (6, 8, 10, 12 mm) are supplied to make precise holes for neat, repeatable routing.
• IPX6/IPX7 Rated: The included base gasket and seal design provide tested resistance to heavy spray and short-term immersion.

Who It's For

The SEAVIEW cable gland is best for boat owners, solar installers and anyone running multiple lines through a deck or bulkhead who needs a tidy, tested waterproof seal. Its compatibility with modest cable and connector sizes makes it a solid choice for electronics, lighting and low-voltage power runs used in marine and outdoor recreational settings.

It is less suitable for very large power connectors or cables over the stated size limits, or for situations that demand permanent, welded penetrations; users with oversized conduits or specialized feedthroughs should consider alternate heavy-duty gland options.

Pros & Cons

Pros

• Marine-grade construction and IPX6/IPX7 resistance deliver reliable leak protection in wet conditions.
• Split-seal design removes the need to unthread connectors, speeding installation and reducing frustration.
• Includes four brass drill tubes for accurate hole sizes and neat cable placement.
• Low-profile shape and good impact resistance make it unobtrusive and durable on decks and panels.

Cons

• Maximum cable and connector diameters are limited (0.5 in cable, 0.67 in connector), so it won't fit larger power plugs or bulky assemblies.
• Color and finish options vary by material, so matching exact trim on a boat may require choosing the right material carefully.

Specifications

Brand	SEAVIEW
Type	Multi-cable rectangle cable gland
Materials	Marine grade plastic or 316 stainless steel
Max cable diameter	0.5 in (10.6 mm)
Max connector diameter	0.67 in (17 mm)
Dimensions	4 in long x 1.9 in wide x 0.8 in tall
Accessories	Four brass drill tubes (6, 8, 10, 12 mm) and base gasket

Our Verdict

The SEAVIEW Multi-Cable Rectangle Cable Gland is a sensible, cost-effective solution for routing multiple small- to medium-diameter cables through boat decks and exterior panels. Its marine-grade construction, included drill tubes and split-seal design make installations quicker and more watertight than improvised alternatives, offering clear value for owners or installers dealing with lighting, instruments or solar runs. Choose a different feedthrough if you need to pass larger connectors.

Frequently Asked Questions

Will I need to remove cable connectors to install this?
The split-seal design is intended so you do not have to remove connectors that fit within the stated maximum connector diameter.

Is this suitable for saltwater installations?
Yes, it is available in marine grade plastic or 316 stainless steel and includes a base gasket for marine exposure and splash resistance.

What hole sizes are required?
Use the supplied brass drill tubes (6, 8, 10, 12 mm) for precise holes; the product dimensions are 4 in x 1.9 in x 0.8 in for placement planning.