| | | | #640 Register Box 4" Tall wo/Tabs | | Standard Size #640 Register Boxes are lined with 1" Ductliner to provide an R-Factor of R-4. The #640 Register Box is 4" Tall without Tabs. | |  |
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| | | | | | #641 Register Box 4" Tall w/Snap-Rail Flange | | Standard Size #641 Register Boxes are lined with 1" Ductliner to provide an R-Factor of R-4. The #641 Register Box is 4" Tall with Snap-Rail Flange. | | |
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| | | | #648 Register Box 9" Tall w/Side Outlet | | Standard Size #648 Register Boxes are lined with 1" Ductliner to provide an R-Factor of R-4. The #648 Register Box is 9" Tall with Side Outlet. | | |
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| | | | | | #649 Register Box 9" Tall wo/Collar | | | |
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| | | | #650 Register Box 9" w/End Outlet | | Standard Size #650 Register Boxes are lined with 1" Ductliner to provide an R-Factor of R-4. The #650 Register Box is 9" Tall with End Outlet. | | |
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| | | | | | #645 Adjustable 45° Collar w/Tabs | | #645 Register Boxes have Adjustable 45° Collars and Tabs. The registers boxes are lined with 1" R-4 Ductliner. | | |
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| | | | #643SST w/Tabs | | #643SST Steel Slant Top Register Boxes are lined with 1/2" R-2 Ductliner. | | |
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