The Thermo Retrofit Thimble™ provides an air tight outside wall penetration by using high-density foam gaskets to keep out air, insects and other pests. It allows HVAC professionals to run electrical, plumbing, and A/C line sets through outside walls while stopping snagging and creating a permanent, air-tight seal through walls. There are also no ugly holes to patch when using the Thermo Retrofit Thimble™.

Available Sizes:  

• 2-7/8" dia.- up to 12" wall
  
• 4-7/8" dia.- up to 12" wall
  
• 2-1/4"x 3-1/8"- up to 12" wall  

PRODUCT HIGHLIGHTS:  

• Saves on labor costs  
• No ugly holes to patch
  
• Creates a permanent, air-tight seal through walls 
• Installs easily on siding or masonry walls
• For new construction or retrofit
• For residential and commercial applications
•  Temporary plug keeps out air, insects and other pests
• Flange pre-marked for nails or screws
• No snagged line sets

You will be brought to the Thermo Retail website to purchase.