300 FT 3mm Black Split Loom Conduit Polyethylene Tubing - Continuous

In this review the reviewer looks at a long run of split loom conduit intended for anyone who needs to bundle and protect wiring over lengthy runs. The single biggest reason to buy is the continuous 300 ft dispenser roll that keeps a long project tidy while delivering a thick, higher-density polyethylene that resists abrasion and harsh fluids. This review focuses on practical use: routing automotive, marine, or home cables, ease of insertion through the longitudinal split, and the overall durability expected from a denser material.

Key Features

• 300 ft continuous roll: The dispenser gives a single uninterrupted length so long wiring runs are handled without multiple joins.
• 1/8 in (3mm) inner diameter: Suited for small wire bundles and low-profile routing where space is limited.
• High-density polyethylene: Nearly twice the density of common alternatives, providing improved abrasion and chemical resistance for demanding environments.
• Corrugated, split design: The longitudinal split makes inserting wires easier and the ribbed profile lets the split stay closed once installed for a tidy appearance.
• Wide temperature range: Rated from -40 F to 200 F (-40 C to 93 C), allowing use in cold and hot operating conditions.
• Resistant to oils and gasoline: Helps protect wiring in automotive and marine installations where exposure to fuels and solvents is a concern.

Who It's For

This product is aimed at DIYers, electricians, and vehicle owners who need a long, continuous length of protective conduit for cable runs in cars, trailers, boats, or around a shop or office. The 3mm ID is best for small bundles, signal cables, and low-voltage harnesses where a slim profile is required.

Those who regularly work with thicker multi-conductor cables or require a larger internal diameter should look for a wider size; also, if wire insertion without any assistance is a top priority, larger-ID looms or alternative sleeving that allows easier feeding may be preferable.

Pros & Cons

Pros

• High-density polyethylene construction offers stronger abrasion and chemical resistance compared with typical split loom tubing.
• The 300 ft continuous dispenser roll reduces joins and makes long installations neater and faster.
• Flexible ribbed design keeps the bundle looking organized and helps the split stay closed after wires are placed.
• Operates across a broad temperature range, suitable for automotive and marine environments.

Cons

• Some users find inserting multiple wires into the 3mm ID challenging without using a tool or feeding guide.
• The narrow diameter is not suitable for larger cable bundles or thicker power wiring.

Specifications

Our Verdict

For anyone needing a long, protective, low-profile conduit for small wire bundles, this 300 ft split loom roll is a practical, cost-effective choice. The heavier polyethylene construction and long dispenser length make it especially good for automotive, marine, and workshop projects where durability and minimal joins matter. If you need larger capacity or effortless wire insertion for many conductors, consider a larger diameter option instead.

Frequently Asked Questions

Will this fit common automotive signal wires?
Yes; the 3mm inner diameter accommodates most small signal and low-voltage wires used in automotive and trailer wiring.

Can it handle exposure to fuel and oil?
Yes; the material is formulated to resist gasoline, oil and many harsh chemicals, making it suitable for under-hood and marine areas.

Is the roll a single continuous length?
Yes; the product ships as a 300 ft continuous roll in a dispenser for long uninterrupted runs.