Heat Shrink Tubing · 1/8 in 4 ft Green Polyolefin 2:1 Shrink Ratio Flame-Retardant · Alpha Wire FIT-221V-1/8-GREEN-4FT

What this product is for

This heat shrink tubing is used to insulate, protect, and identify wire terminations, splices, and small cable bundles. It is a good fit where you need a clean finish over conductors or connectors in control panels, equipment wiring, and general electrical service work.

Use for

• Colour coding and circuit identification with green tubing
• Insulating small wire splices and terminations
• Adding light abrasion protection and strain relief over connections
• Panel wiring, low-voltage wiring, automotive and marine service work where the tubing size is appropriate

Avoid for

• Applications requiring adhesive-lined environmental sealing
• Heavy mechanical protection in place of conduit or loom
• Installations where a larger recovered diameter is needed than this size allows

Best for

Best for electricians and maintenance teams who need a standard 2:1 polyolefin heat shrink in a convenient 4 ft (1.22 m) stick length for service stock, bench work, and small production runs.

Installed in

Typically installed in control panels, machinery, junction boxes, harness assemblies, marine electrical systems, and vehicle electrical repairs. Typical guidance: choose heat shrink with a supplied ID large enough to slide over the connection, while the recovered ID should finish tight on the conductor or component. Actual fit depends on connector shape, insulation thickness, and installation method.

Why this product exists

This product provides a simple way to finish and protect electrical connections without tape. The green colour helps with identification, while the cross-linked polyolefin body shrinks with heat to form a neat insulating sleeve.

Compared with similar products

Compared with adhesive-lined heat shrink, this tubing is better suited to general insulation and identification rather than moisture sealing. Compared with bulk spool tubing, the 4 ft (1.22 m) cut length is easier to stock for service calls and small jobs.

Specifications

• Manufacturer: Alpha Wire
• Manufacturer part number: FIT-221V-1/8-GREEN-4FT
• Product type: Heat shrink tubing
• Series: FIT 221V
• Colour: Green
• Length: 4 ft (1.22 m)
• Minimum supplied ID: 1/8 in (3.2 mm)
• Maximum recovered ID: 1/16 in (1.6 mm)
• Nominal recovered wall thickness: 0.020 in (0.5 mm)
• Shrink ratio: 2:1
• Material: Cross-linked polyolefin
• Flame rating: VW-1
• Standards: UL 224, CSA 198, AMS-DTL-23053/5 Class 1 and 3