Approved Vendors - Insulated Class 1 Flexible Duct, R6, 16 in ID, 6 ft L

Approved Vendors - Insulated Class 1 Flexible Duct, R6, 4 in ID, 6 ft L

Approved Vendors - Insulated Class 1 Flexible Duct, R6, 14 in ID, 25 ft L

Approved Vendors - Insulated Class 1 Flexible Duct, R6, 6 in ID, 6 ft L

Approved Vendors - Insulated Class 1 Flexible Duct, R6, 12 in ID, 6 ft L

Approved Vendors - Insulated Class 1 Flexible Duct, R6, 16 in ID, 25 ft L

Approved Vendors - Insulated Class 1 Flexible Duct, R6, 7 in ID, 6 ft L

Approved Vendors - Insulated Class 1 Flexible Duct, R6, 9 in ID, 6 ft L

Approved Vendors - Insulated Class 1 Flexible Duct, R6, 18 in ID, 6 ft L

Approved Vendors - Insulated Class 1 Flexible Duct, R6, 8 in ID, 6 ft L