FIT® Heat Shrink Tubing

Alpha Wire’s broad range of FIT heat-shrink tubing is ideal for solving many challenges in electrical and electronic wiring

Image of Alpha Wire's FIT® Heat Shrink TubingAlpha Wire's FIT heat-shrink tubing offers a reliable way to protect and seal terminations while adding additional mechanical ruggedness. The Alpha Wire FIT line consists of a wide range of general-purpose and special purpose styles, materials, and tubing types, each having unique attributes that provide solutions for use in the broadest possible range of applications and environments.

Made from premium compounds under the tightest manufacturing controls, FIT will consistently have excellent physical characteristics.

FIT-221B Features
  • General purpose protection and repair
  • Identification and beautifying substrates
  • Insulation from environment
  • Reduced longitudinal shrinkage
  • Use with XTRA-GUARD® 1
  • Resistance to water, fungus, UV light (black only)
  • Operating temperature: -55°C to +135°C
  • Shrinkage ratio: approximately 2 to 1 at 121°C


ImageManufacturer Part NumberDescriptionShrinkage RatioAvailable Quantity
HEATSHRINK 1/2 IN X 150FT BLACKF221B1/2 BK201HEATSHRINK 1/2 IN X 150FT BLACK2 to 122 - ImmediateView Details
HEATSHRK BLK 1/2X1F221B1/2 BK201HEATSHRK BLK 1/2X1" 1=50PC2 to 10View Details
HEATSHRK BLK 1/2X1.5F221B1/2 BK201HEATSHRK BLK 1/2X1.5" 1=50PC2 to 10View Details
HEATSHRK BLK 1/2X2F221B1/2 BK201HEATSHRK BLK 1/2X2" 1=50PC2 to 13 - ImmediateView Details
HEATSHRK BLK 1/2X3F221B1/2 BK201HEATSHRK BLK 1/2X3" 1=50PC2 to 10View Details
HEATSHRINK 1/2 IN X 4FT BLACKF221B1/2 BK210HEATSHRINK 1/2 IN X 4FT BLACK2 to 17484 - Immediate
7 - Factory Stock
View Details
HEATSHRK BLK 1/2X4F221B1/2 BK201HEATSHRK BLK 1/2X4" 1=50PC2 to 10View Details
HEATSHRK BLK 1/2X6F221B1/2 BK201HEATSHRK BLK 1/2X6" 1=50PC2 to 10View Details
HEATSHRK BLK 1/2X0.5F221B1/2 BK201HEATSHRK BLK 1/2X0.5" 1=50PC2 to 10View Details
HEATSHRK BLK 1/2X0.75F221B1/2 BK201HEATSHRK BLK 1/2X0.75" 1=50PC2 to 10View Details
Published: 2012-06-29