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Deal of the Day
SHOP PRODUCTS
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About Castle Building Group
Deal of the Day
SHOP PRODUCTS
Free Magazine
About Castle Building Group
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DUCT WORK
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Below 10 (6)
10 to 12.99 (26)
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19 and Above (38)
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IMPERIAL (82)
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DUCT PIPE
DUCT ACCESSORIES
REGISTER BOOTS / STACKS
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Imperial GV0752 Round Damper with Key, 6 in Dia, Steel
Our Price:
$5.39
Imperial GV1587 Connector Union, 3 in Union, Galvanized Steel
Our Price:
$7.99
Imperial GV0957-B Duct Take-Off, 4 in Duct, 30 ga Gauge, Steel
Our Price:
$7.99
Use to adjust and balance airflow in individual runs of round pipe.
Imperial Connector Union, 3 in Union, Galvanized Steel, 3 in L x 3 in W x 4 in H Dimensions
Used for transition from air plenums or rectangular duct to round pipe or insulated duct. 30 ga.
Imperial GV2062 Duct Elbow, 6 in Connection, 30 ga Gauge, Galvanized
Our Price:
$8.69
Imperial GV0651 End Boot, 4 in L, 10 in W, 4 in H, 90 deg Angle, Steel, Galvanized
Our Price:
$8.99
Imperial GV0685-B Universal Boot, 4 in L, 10 in W, 4 in H, Steel, Galvanized
Our Price:
$8.99
Imperial Duct Elbow, 6 in Connection, 30 ga, Oval Flat Duct, Galvanized, Dimensions: 12-3/8 in H x 2-3/4 in W
Used for right-angle center-end transition from round pipe or insulated flexible duct to a register or grille.
Used for in-line transition from round pipe or insulated flexible duct to a register or grille. 30 ga.
Imperial GV1588-A Connector Union, 4 in Union, Galvanized Steel
Our Price:
$10.99
Imperial GV0968 Duct Take-Off, 4 in Duct, 30 Gauge, Steel
Our Price:
$10.99
Imperial GV0969-A Duct Take-Off, 5 in Duct, 30 Gauge, Steel
Our Price:
$10.99
Imperial Connector Union, 4 in Union, Galvanized Steel, 4 in L x 4 in W x 4 in H Dimensions
Used to tap into the top of trunk duct. Forms a transition from rectangular to round branch duct. Used when branch ducts are to be located within a joist space. 30 ga.
Used to tap into the top of trunk duct. Forms a transition from rectangular to round branch duct. Used when branch ducts are to be located within a joist space. 30 ga.
Imperial GV0959-C Duct Take-Off, 6 in Duct, 30 ga Gauge, Steel
Our Price:
$10.99
Imperial GV0970-C Duct Take-Off, 6 in Duct, 30 Gauge, Steel
Our Price:
$10.99
Imperial GV0622 Angle Boot, 3 in L, 10 in W, 6 in H, 90 deg Angle, Steel, Galvanized
Our Price:
$10.99
Used for transition from air plenums or rectangular duct to round pipe or insulated duct. 30 ga.
Used to tap into the top of trunk duct. Forms a transition from rectangular to round branch duct. Used when branch ducts are to be located within a joist space. 30 ga.
Imperial Angle Boot, 90 deg, Steel, Galvanized, 3 in L, 10 in W, 6 in H
Imperial GV0645 Ceiling Boot, 4 in L, 10 in W, 5 in H, Steel, Galvanized
Our Price:
$10.99
Imperial GV0694-A Universal Boot, 4 in L, 10 in W, 5 in H, Steel, Galvanized
Our Price:
$10.99
Imperial GV0656 End Boot, 3 in L, 10 in W, 5 in H, 90 deg Angle, Steel, Galvanized
Our Price:
$10.99
Imperial Ceiling Boot, Steel, Galvanized, 4 in L, 10 in W, 5 in H
Used for in-line transition from round pipe or insulated flexible duct to a register or grille. 30 ga.
Used for right-angle center-end transition from round pipe or insulated flexible duct to a register or grille.
Imperial GV0682 Universal Boot, 3 in L, 10 in W, 4 in H, Steel, Galvanized
Our Price:
$10.99
Imperial GV0691 Universal Boot, 3 in L, 10 in W, 5 in H, Steel, Galvanized
Our Price:
$10.99
Imperial GV1589-A Connector Union, 5 in Union, Galvanized Steel
Our Price:
$11.99
Used for in-line transition from round pipe or insulated flexible duct to a register or grille. 30 ga.
Used for in-line transition from round pipe or insulated flexible duct to a register or grille. 30 ga.
Imperial Connector Union, 5 in Union, Galvanized Steel, 5 in L x 5 in W x 4 in H Dimensions
Imperial GV2078 Oval Vertical Elbow, 30 ga Gauge, Steel, Galvanized
Our Price:
$11.99
Imperial GV0604 Angle Boot, 3 in L, 10 in W, 4 in H, 90 deg Angle, Steel, Galvanized
Our Price:
$11.99
Imperial GV0701 Universal Boot, 3 in L, 10 in W, 6 in H, Steel, Galvanized
Our Price:
$11.99
Imperial Oval Vertical Elbow, Material Gauge: 30 ga, Steel, Galvanized, Dimensions: 6 in Dia
Used for right-angle transition from round pipe or insulated flexible duct to a register or grille.
Used for in-line transition from round pipe or insulated flexible duct to a register or grille. 30 ga.
Imperial CS-0510-A Air Duct, 10 ft L, Vinyl, Gray
Our Price:
$12.99
Imperial GV0732 End Cap, 3 in Dia, Galvanized Steel
Our Price:
$12.99
Imperial GV1071-A Connector Union, 6 in Union, Round Duct, Galvanized Steel
Our Price:
$12.99
Imperial Air Duct, Air Flow Rate: 4000 fpm, Temperature Rating: -20 to 160 deg F, Insulated/Non Insulated: Non-Insulated, Vinyl, Gray, 5 in Dia Inside, 10 ft L
Imperial End Cap, 30 ga, Galvanized Steel, 3 in Dia
Imperial Connector Union, 6 in Union, Round Duct, Galvanized Steel
Imperial GV0614 Angle Boot, 4 in L, 10 in W, 5 in H, Steel, Galvanized
Our Price:
$12.99
Imperial GV0665 End Boot, 90 deg, Steel, Galvanized
Our Price:
$12.99
Imperial GV2098 Round to Oval Boot, 90 deg, Galvanized
Our Price:
$12.99
Used for right-angle transition from round pipe or insulated flexible duct to a register or grille.
Imperial End Boot, 90 deg, Steel, Galvanized, 3-1/4 in L, 10 in W, 6 in H
Imperial Round to Oval Boot, 90 deg, 30 ga, Galvanized, 6 in L, 6 in Dia
Imperial GV0606 Angle Boot, 4 in L, 10 in W, 4 in H, 90 deg Angle, Steel, Galvanized
Our Price:
$12.99
Imperial GV0658 End Boot, 4 in L, 10 in W, 5 in H, 90 deg Angle, Steel, Galvanized
Our Price:
$12.99
Imperial GV0683-A Universal Boot, 3-1/4 in L, 10 in W, 4 in H, Steel, Galvanized
Our Price:
$12.99
Used for right-angle transition from round pipe or insulated flexible duct to a register or grille.
Used for right-angle center-end transition from round pipe or insulated flexible duct to a register or grille.
Used for in-line transition from round pipe or insulated flexible duct to a register or grille. 30 ga.
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