DUCT 4" TRUMPET ATTACHMENT
DUCT 4" HOOP
DUCT 4" COUPLER
DUCT 4" END CAP
DUCT 4" DROP OFF
DUCT 4" CHANNEL
DUCT 4" T HORIZONTAL FITTING
4" OPTI-DUCT L HORIZONTAL FITTING
DUCT 4" 45° UPSWEEP
DUCT 4" 45° DOWNSWEEP
DUCT 4" 90° DOWNSWEEP
DUCT 4" L-BRACKET