This 4mm Red heat shrink tubing (type H-2Z-4.0/2.0) is a polyethylene sleeve that shrinks from 4mm to 2mm inner diameter when heat is applied (2:1 ratio), designed for insulating, colour-coding and protecting cable splices, terminals and wire bundles; sold per metre.

Key Features

• Pre-shrink inner diameter: 4mm; post-shrink: 2mm
• Shrink ratio: 2:1
• Material: Polyethylene (H-2Z type)
• Color: Red — for colour-coded identification
• Sold per metre — order the exact length required
• Applies with a heat gun, hot air blower or open flame

Product Benefits

• 4mm diameter accommodates medium wire gauges and small multi-core cable bundles
• Red colour is used as a standard phase or positive identification colour in electrical wiring
• Per-metre pricing eliminates waste when only short sections are needed

Technical Specifications

• Type: H-2Z-4.0/2.0
• Material: Polyethylene
• Pre-shrink diameter: 4mm
• Post-shrink diameter: 2mm
• Shrink ratio: 2:1
• Color: Red
• Unit: Per metre

Why You'll Love It

• 4mm tubing covers a wider range of cable diameters than 2mm, making it more versatile for general electrical work
• Buy by the metre to match project requirements without leftover stock
• Shrinks quickly and evenly with standard heat tools — no specialist equipment needed