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OPTIONS / ACCESSORIES
Item Description
Catalog
Number
Unit Model No
156 180 210 240 300
ROOF CURBS
8 in. height 11F58 X X X X X
14 in. height 11F59 X X X X X
18 in. height 11F60 X X X X X
24 in. height 11F61 X X X X X
Adjustable Pitch Curb
14 in. height 43W26 X X X X X
Standard Roof Curbs, Horizontal - Requires Horizontal Return Air Panel Kit
26 in. height - slab applications 11T89 X X X X
30 in. height - slab applications 11T90 X
37 in. height - rooftop applications 11T96 X X X X
41 in. height - rooftop applications 11T97 X
Insulation Kit For Standard Horizontal Roof Curbs
For 26 in. Curb 73K32 X X X X
For 30 in. Curb 73K33 X
For 37 in. Curb 73K34 X X X X
For 41 in. Curb 73K35 X
Horizontal Return Air Panel Kit
Required for Horizontal Applications with Roof Curb 87M00 X X X X X
CEILING DIFFUSERS
Step-Down - Order one RTD11-185S 13K63 X X
RTD11-275S 13K64 X X X
Flush - Order one FD11-185S 13K58 X X
FD11-275S 13K59 X X X
Transitions (Supply and Return) - Order one C1DIFF33C-1 12X68 X X
C1DIFF34C-1 12X70 X X X
X = Field Installed
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