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Heating & Air Conditioning

Putty for A/C line going into house.

9 years ago

Where do it get this flexible putty stuff that is used around a/c lines going into the house.

I stopped at Lowes and, gulp, asked some guy stocking shelves sort of near the plumbing area. Bad move. Clearly had no clue. May not have even known that a/c lines go into the house.

Where do I find it and what is it called specifically?

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Comments (3)

grubby_AZ Tucson Z9
9 years ago
Spray foam.
energy_rater_la
9 years ago
Thumb Gum..really thats the name.
blue & white box, should be by caulking or
plumbing. its a rope caulking.
great for sealing around plumbing penetrations.

if box stores don't have it...hvac of plumbing supply.

foam shrinks.

best of luck
sseverus
9 years ago
I bought this "putty" recently at Home Depot. It is called Duct Seal by Gardner Bender. Comes in a 6" x 2" block. SKU# 593567.

Here is a link that might be useful: Duct Seal

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