Thermo-Thimble Size:2-7/8" dia.- up to 12" wall 6 or 8-inch walls

6 or 8-inch walls

electric heaters

insects and other pests

comes ready-to-use

6 custom sizes of precision molded frames

Thermo-Thimble Size:2-7/8" dia.- up to 12" wall 6 or 8-inch wallsThe Easy Way to Airtight Through Wall Line Set Installations The Thermo Thimble is the professional way to run your pipe and wire projects through 4, 6 or 8 inch walls. By providing an airtight seal to outside wall penetrations, it avoids messy looking installations and hides ugly wires. Using high density foam gaskets to keep out air, insects and other pests, it lets you run electrical, plumbing, and A C line sets through outside walls while stopping