Design Engineering DEI 99837 Hi-Temp Heat Shrink Tubing 3mm x 500ft

The Design Engineering DEI 99837 is a high-temperature heat shrink tubing designed for professional-grade wire and cable insulation and protection. This generous 500-foot spool of 3mm diameter tubing provides exceptional value for automotive, marine, and electrical applications where heat resistance and durable wire protection are essential.

Key Features:

• 3mm (approximately 1/8 inch) diameter tubing suitable for a wide range of wire gauges
• 500-foot continuous length provides ample material for multiple projects
• High-temperature rated construction withstands extreme heat environments
• 2:1 shrink ratio ensures tight, secure fit when heated
• Protects wires and cables from abrasion, moisture, and chemical exposure
• Ideal for automotive wiring, marine electrical systems, motorsports applications, and general electrical repairs
• Professional-grade quality from DEI, a trusted name in thermal management products

This heat shrink tubing shrinks when exposed to heat from a heat gun or other appropriate heat source, creating a tight seal around wires and connections. The extended length on a convenient spool format makes it perfect for shops, technicians, and enthusiasts who regularly work on electrical systems and want to keep quality heat shrink material on hand.