Armaflex 1/2 in. x 3 ft. Pipe Insulation - R3.3-HPT05812 - The Home Depot


Model # HPT05812

Internet # 203684421

Store SKU # 801236

1/2 in. x 3 ft. Pipe Insulation - R3.3

Armaflex 1/2 in. x 3 ft. Pipe Insulation - R3.3

This item has been discontinued.
The Home Depot no longer carries this specific product.

$7.48 / each


Model # HPT05812

Internet # 203684421

Store SKU # 801236

The 3 ft. Armaflex Pipe Insulation bags are one of the newest innovations from Armacell. The bag containing 12 ft. of insulation allows for an easy to manage installation. The Armaflex helps protect your pipes from freezing, mold and condensation. For added protection, this product contains Microban - an antimicrobial to help prevent mold growth. This rubber insulation can fit your copper and iron pipes and can be installed over a heat cable. Using this insulation helps save energy by preventing heat gain and loss. The excellent R Value helps to save energy. Keeps hot water hot and cold water cold.

  • For 1/2 in. copper pipe size or 3/8 in. iron and PVC pipe sizes
  • Can be installed over a heat cable
  • Closed-Cell insulation
  • Contains microban
  • R Value of 3.3
  • Flexible for easy installation
  • 12 lineal feet per bag
  • 25/50 rated


Assembled Depth (in.)  1.6 in  Assembled Height (in.)  38 in 
Assembled Width (in.)  6.6 in  Maximum compatible pipe size (in.)  .50 
Product Height (in.)  38  Product Length (in.)  1.6 
Product Width (in.)  6.6 
Accessory Type  Insulation  Compatible Pipe Material  Copper 
Fire rated  Yes  Minimum compatible pipe size (in.)  .50 
Pipe or Fitting Product Type  Accessory  Product Weight (lb.)  .483 lb 
R Value  3.3  Returnable  90-Day 
Self-sealing  No 
Warranty / Certifications
ENERGY STAR Certified  No  Manufacturer Warranty  n/a 


Rated 3.5 out of 5 by 2 reviewers.
Rated 5.0 out of 5.0 by install over heat cable I didn't know I could use this insulation over a heat cable. I bought this and a heat cable to use on my water pipes and have noticed a big difference this winter. January 11, 2013
Rated 2.0 out of 5.0 by I was disappointed 1. it was not split. should have glue where there should have been a split. this would have made it a lot easier to install. December 10, 2013
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