SKU: 76954875221

Duct Seal - Gray 321-1

$16.18 $17.98
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Ships within 48 hours · Estimated delivery Aug 5 - Aug 10

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Description

Duct Seal - Gray 321-1Duct Seal 321 in an all purpose industrial grade duct sealant for all types of metal duct, glass fiber duct board, and flex duct, as well as duct fabric and flexible tubing runouts. It includes UV inhibitors for extended outdoor exposure and built in fiber reinforcement for added strength. This non toxic water based product is solvent free and is suitable for residential use. Duct Seal 321 is UL 181 B M Listed Passes ASTM D 2202, ASTM C 731. USDA, EPA

Duct-Seal 321 in an all purpose industrial grade duct sealant for all types of metal duct, glass fiber duct board, and flex duct, as well as duct fabric and flexible tubing runouts. It includes UV inhibitors for extended outdoor exposure and built-in fiber reinforcement for added strength. This non-toxic water based product is solvent free and is suitable for residential use. -Duct-Seal 321 is UL 181 B-M Listed -Passes ASTM D-2202, ASTM C-731. USDA, EPA and FDA Approved. LEED compliant SCAQMD Rule 1168. -City of Los Angeles Approval RR #8069, Gray Duct Seal - 1 Gallon
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 76954875221

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4.8 ★★★★★
Based on 21 reviews
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B
Verified Purchase
BTensor
Battle Creek, US
★★★★★ 5
works fine in a Acura RDX, model year 2017
Size: (Pack of 1)
Appears to be well made. The price was fair.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 6, 2025
A
Verified Purchase
Amazon Customer
Natrona Heights, US
★★★★★ 5
Worked perfectly
Size: (Pack of 1)
Easy to install
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 18, 2026
J
Verified Purchase
Joe Lahoud
Lexington, US
★★★★★ 5
perfect fit
Size: (Pack of 1)
Buy this. 3-minute install. Youtube it.
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Reviewed in the United States on May 8, 2025
O
Verified Purchase
Oscar
Louisville, US
★★★★★ 4
Did its job
Size: (Pack of 1)
No complaints and did what it was intended for. Nice fit.
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Reviewed in the United States on September 16, 2024
M
Verified Purchase
Mo_Green
West Palm Beach, US
★★★★★ 5
Excellent Quality
Size: (Pack of 1)
Nice quality.
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Reviewed in the United States on June 7, 2025

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