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The MARS 93521 Duct Seal Putty is a non-hardening, non-toxic, gray putty compound used for applications in refrigeration, heating and cooling, electrical, and plumbing. It can be shaped by hand and reused for plugging openings through foundations and sealing around electrical boxes. Temperature range: 25 deg F to +120 deg F.
This permanently soft compound adheres to most clean dry surfaces and offers temperature ranges between -20 F to 350 F. Non-Corrosive, Non-curable, Non-Toxic.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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