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PRODUCT INDEX
Low/High Pressure Defined
Product Selection Diagram
Elbows
Concentric/Eccentric Reducers
Couplings
Starting Collars
End Caps
45° Boot Saddles
45° Laterals
90° Boot Saddles
90° Tee's
90° Shoe Taps
High Efficiency Takeoff
Air Intake Hood
Roof Jack
Spiral Pipe
Pant Wye's
Quadrant Dampers
90° Register Saddles
Ufo Head
Warm Air Head
Ceiling Head
Rectangular Duct
Volume Damper
Plenum with Cap
Filter Rack
Access Panels
Installation Accessories
Slips, Flat Drive, Furnace Access.
Rec. Sheet Metal Gauges & Const.
Longitudinal Seams
Duct Reinforcement

Product Selection Schematic
Click on image.

 


Concentric
Reducers
Eccentric
Reducers
concentric reducers eccentric reducers
Part numbers shown represent the standard Large End (D2). The Small End (D1) must be specified when ordering. Example: When ordering a 8x6 Concentric Reducer, the standard part number shown below is 2-08413XX. Specifying the required D1 changes the part number to 2-0841306.
Concentric Reducers
D2 C1 C2 L Gauge Part #
6 2 2 4 26 2-06413XX
7 2 2 4 26 2-07413XX
8 2 2 4 26 2-08413XX
9 2 2 4 26 2-09413XX
10 2 2 4 26 2-10413XX
12 2 2 4 24 2-12413XX
14 2 2 4 24 2-14413XX
16 2 2 4 24 2-16413XX
18 2 2 4 22 2-18413XX
20 2 2 4 22 2-20413XX
22 2 2 4 22 2-22413XX
24 2 2 4 22 2-24413XX
XX denotes D1
Eccentric Reducers
D2 C1 C2 L Gauge Part #
6 2 2 4 26 2-063413XX
7 2 2 4 26 2-073413XX
8 2 2 4 26 2-083413XX
9 2 2 4 26 2-093413XX
10 2 2 4 26 2-103413XX
12 2 2 4 24 2-123413XX
14 2 2 4 24 2-143413XX
16 2 2 4 24 2-163413XX
18 2 2 4 22 2-183413XX
20 2 2 4 22 2-203413XX
22 2 2 4 22 2-223413XX
24 2 2 4 22 2-243413XX
XX denotes D1
Standard L is 4". When reduction difference (D2-D1) is greater than 4", subtract 2" from the reduction difference to get L dimension. Example: 12x4 Reducer = reduction difference of (12"-4") 8". Subtract 2" and L = 6". Other sizes available.
11419 Yellowpine St. NW - Minneapolis, MN 55448 - Ph: 763-755-7677 - 1-800-426-3643 - info@spiralmfg.com