Ecm Industries Llc HST-250 Heat Shrink Tubing 6 Pack

Product Description

The ECM Industries LLC HST-250 is a 6-pack of polyolefin heat shrink tubing designed for wire insulation, splice protection, and strain relief in electrical installations. Each piece shrinks from a 0.25-inch nominal diameter down to 0.125 inches when heat is applied, creating a tight, protective sleeve over conductors and terminations. The tubing carries UL and CSA approval, making it suitable for use in applications where listed materials are required by code. Electricians, HVAC technicians, and other trades reach for this type of product when terminating control wiring, splicing low-voltage leads, or protecting bare conductors against abrasion and moisture ingress.

This heat shrink tubing is appropriate for residential and light commercial electrical work, control circuit wiring, low-voltage HVAC connections, and general wire management tasks. It is packaged in a carded 6-pack format, making it convenient for field service kits and service vans. The 0.25-inch to 0.125-inch shrink ratio covers a common range of conductor gauges encountered in everyday electrical and HVAC service work.

Key Features

• Shrinks from 0.25 inches nominal diameter to 0.125 inches for a secure, form-fitting sleeve
• UL and CSA approved for use in listed installations
• 6-pack carded format suits field service kits and stocking on service vehicles
• Suitable for wire splices, terminations, and strain relief in low-voltage and line-voltage applications
• Lightweight at 0.5 pounds per package, easy to carry in a tool bag or parts pouch

Compatibility

Designed as a general-purpose heat shrink tubing solution compatible with conductors and terminations in the 0.25-inch to 0.125-inch diameter range, as found in typical residential and commercial electrical and control wiring applications.

Installation Notes

De-energize all circuits before applying heat shrink tubing to any conductor or splice. A heat gun is the preferred tool for shrinking; open flame sources should be avoided to prevent uneven shrinkage or damage to adjacent components. Work performed on listed electrical systems should use UL- and CSA-approved materials in accordance with NEC requirements. Allow the tubing to cool fully before restoring power to the circuit.