1 in Flame Retardant Split Wire Loom Tubing 100 ft - Durable

In this review the 1 in flame retardant split wire loom tubing is presented as a practical choice for installers and DIYers who need reliable cable protection over long runs. The single biggest reason to buy is its combination of a full 100 ft length and a flame-retardant construction that withstands harsh conditions; it is especially useful when replacing or bundling wiring in automotive, marine, industrial or home installations where abrasion resistance and heat tolerance matter.

Key Features

• Size and fit: The 1 in inside diameter (I.D. about 1.02 in) accommodates most small to medium cable bundles while the corrugated profile helps keep cables centered and protected.
• Length: At 100 ft the continuous roll lets a single run cover multiple zones or supplies enough material for several projects without frequent splicing.
• Flame retardant: Constructed from materials with a V2 UL-94 rating and a continuous operating range from -40 F to 275 F, it reduces ignition risk and slows flame spread for added safety.
• Split design: The split, corrugated structure allows quick installation over existing harnesses and simplifies maintenance and troubleshooting without full disassembly.
• Durability: Made in Canada and built to resist heat, abrasion and many chemicals, the tubing holds shape under vibration and repeated handling.

Who It's For

This tubing is ideal for mechanics, electricians, marine technicians and hobbyists who need a long run of protective split conduit for engine bays, boat bilges, control panels or office cable management. Its temperature resistance and flame-retardant rating make it appropriate for demanding environments where safety and longevity are priorities.

Those who need very large cable bundles should measure carefully before buying: the I.D. is about 1.02 in, so oversized harnesses will not fit. If a rigid conduit or sealed, waterproof sleeve is required, this split polypropylene loom is not a direct substitute.

Pros & Cons

Pros

• Long 100 ft length provides material for multiple runs or large projects without frequent joins.
• Flame-retardant material and wide temperature tolerance add safety in hot or exposed locations.
• Split, corrugated design makes retrofit installs and repairs fast and convenient.
• Sturdy construction maintains shape and resists crushing, abrasion and vibration.

Cons

• Inside diameter of about 1.02 in limits the size of cable bundles that will fit; measure carefully before purchasing.
• Being split, it is not fully sealed against water ingress for submerged or fully exposed wet environments.

Specifications

Our Verdict

For anyone needing a long, practical coil of protective split loom for automotive, marine or industrial wiring, this 1 in flame retardant tubing is a solid value. It combines durability, ease of installation and credible flame-retardant performance in a 100 ft length, making it especially useful for repairs, retrofits and multi-zone projects where abrasion and heat resistance matter.

Frequently Asked Questions

Will this fit over my engine harness?
Measure the outside diameter of the harness; the inside diameter of the tubing is about 1.02 in, so the bundle must be smaller than that to fit comfortably.

Is the tubing waterproof?
The split corrugated design is not watertight and is not intended for continuous submersion; it provides mechanical and thermal protection but not a sealed waterproof barrier.

Can it handle engine bay temperatures?
Yes, the material is rated from -40 F to 275 F and is designed to withstand heat, vibration and chemical exposure common in engine compartments.