Thomas & Betts Blackburn Duct Seal DX-5S (25 lbs, 5 units)

Thomas & Betts Blackburn Duct Seal DX-5S (25 lbs, 5 units). Thomas & Betts Blackburn Duct Seal DX-5S (25 lbs, 5 units). Thomas & Betts Blackburn Duct Seal DX-5S (25 lbs, 5 units).