DAMPER  COLLAR 573, 574

573 - LONG COLLAR/DAMPER
(All Double Dampers 7" and Above)

SIZE        ITEM         DB        QTY
5"..........3757....................12
6"..........3757........6363........12
7"..........3759....................12
8"..........3760....................12
9"..........3761....................12
10".........3762....................12
12".........3763....................12
14".........4678.....................6
16".........4679.....................5

 

574 - LONG COLLAR W/O DAMPER PLAIN
(All Double Dampers 7" and Above)

SIZE         ITEM        QTY
5"...........3765.........12
6"...........3766.........12
7"...........3767.........12
8"...........3768.........12
9"...........3769.........12
10"..........3770.........12
12"..........3771.........12
14"..........3575..........6


 

573-574 collar - long starting collar used as a starting collar with or without damper for pipe and/or insulated flex duct.  5 1/2" overall length.  645 - long starting collar with strapping bead used to install insulated flexible duct.  Overall length - 5 1/2" (undersized OD for easy flex duct connection.)  647, 648, 656, 657, 657 - takeoffs used with duct board.  660, 661 - "quick seal" takeoffs - starting collar with a 1 1/2" wide, self-adhesive gasket/flange has four pre-punched holes for attaching to metal duct work or duct board with the use of special fasteners.