Pipe Chase Housing

Dimensions for AL1022 Tall PCH.
Housing Length  20 1/2 inches
Housing Width  14 1/2 inches
Housing Height (without Curb)  22 inches
There are three parts to the Height.  The lid is 2 inches.  The center 17 inches and the skirt at 3 inches. 
Tall PCH Curb AL 1012 Dimensions
Curb Length  19 1/4
Curb Width  13 1/4  
Curb Height (without Housing)  11 1/2
The Curb has a two inch flange out to screw to the roof deck.  Screw holes are on 2 inch centers.
Standard Models Avalable.      
AL 1022  Aluminum Housing and Curb.  Stock item.  
SS 1022  Stainless Housing and Curb.  Non stock item.

Tall PCH Curb AL 1012 Dimensions
Curb Length  19 1/4
Curb Width  13 1/4  
Curb Height (without Housing)  11 1/2
The Curb has a two inch flange out to screw to the roof deck.  Screw holes are on 2 inch centers.