Master Flow®

Starting Collar - Snap Together

Transition from a flat surface like a lined or unlined plenum to round pipe or insulated flexible duct
Starting Collar - Snap Together
STRONG
Made of galvanized steel for strength and durability
VERSATILE
Helps transition from lined or duct board plenums to round pipe or insulated flexible duct
EASY
Can be used with lined or unlined metal plenums, has a snap-together design, and two inches between bead and flange allow space for securing insulated flexible duct

Product availability is subject to change without notice. Not all products are available from all facilities.

Available Sizes

Note:  Product sizes, dimensions, and widths are nominal values and are subject to normal manufacturing/packaging tolerance and variation.
  • Weights
    4 lb. (1.81 kg)
  • Gauges
    30
  • Carton Qtys
    12
  • Diameters
    4" (102 mm)
  • Weights
    4.9 lb. (2.22 kg)
  • Gauges
    30
  • Carton Qtys
    12
  • Diameters
    5" (127 mm)
  • Weights
    7.5 lb. (3.4 kg)
  • Gauges
    30
  • Carton Qtys
    18
  • Diameters
    6" (152 mm)
  • Weights
    6.3 lb. (2.86 kg)
  • Gauges
    30
  • Carton Qtys
    12
  • Diameters
    7" (178 mm)
  • Weights
    7.5 lb. (3.4 kg)
  • Gauges
    30
  • Carton Qtys
    12
  • Diameters
    8" (203 mm)
  • Weights
    5 lb.(2.3 kg)
  • Gauges
    30
  • Carton Qtys
    6
  • Diameters
    10" (254 mm)
  • Weights
    6 lb. (2.72 kg)
  • Gauges
    28
  • Carton Qtys
    6
  • Diameters
    12" (305 mm)
  • Weights
    7 lb. (3.18 kg)
  • Gauges
    28
  • Carton Qtys
    6
  • Diameters
    14" (356 mm)
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