M&M Manufacturing

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508S20 - 20' #508S COLLAR W/SEALANT
508S18 - 18' #508S COLLAR W/SEALANT
503ATH16 - 16' COLLAR L/DAMPER 503ATH
50016 - 16' COLLAR #500 L/DAMPER
508S16 - 16' #508S COLLAR W/SEALANT
640R614810 - 14X8X10 640R6 INS BOX
504MSD14 - 14' SPIN IN STARTING COLLAR
50014 - 14' COLLAR #500 L/DAMPER DUCT
645R61489 - 14 X 8 X 9 645R6 DUCT (NORTH)
6011468 - 14 X 6 X 8 REGISTER (NRTH)
645R61468 - 14 X 6 X 8 645R6 DUCT (NORTH)
640DR61267 - 12X6X7 640DR5 INSULATED (11)
50012 - 12' COLLAR #500H L/DAMPER DUCT
500D12 - 12' COLLAR #500D METAL
508S12 - 12' #508S COLLAR W/SEALANT
645R61288 - 12 X 8 X 8 645R6 DUCT (NORTH)
641R61288 - 12 X 8 X 8 641R6 INSULATED BOX
641R61268 - 12 X 6 X 8 641R6 INSULATED
645R61267 - 12 X 6 X 7 645R6 DUCT (NORTH)
643R61267 - 12 X 6 X 7 643R6 INSULATED
6411266 - 12 X 6 X 6 #641 INSULATED BOX
641121210 - 12 X 12 X 10 #641 INSUL.
504MSD10 - 10' SPIN IN STARTING COLLAR
503ATD10 - 10' COLLAR W/DAMPER 503(WACO)

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