Soffit Discharge

Available Sizes

Product Code A (in) B (in) C (in) D (in)
SSD/1218/24 12.25″ 4″ 1.86″ 2.125″
SSD/1275/24 12.25″ 4″ 1.875″ 2.75″
SSD/1325/24 12.25″ 4″ 1.8125″ 3.25″
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Soffit Discharge

The Prairie Heating Slab Wall Cap is used for venting air from inside a building to the outside by way of going through an exterior wall.


Made of 22GA or 24GA galvanized

Made to be installed with 12" x 1.75" and 12" x 2" Prairie Heating Slab Duct.


Made in Canada
Firestop Installed.
Pressure Rating (-1 to +2 water gauge)
All testing performed by Intertek Testing Services NA Ltd.
Warnock Hersey and Hardy Associates Ltd.

Optional Construction

Firestop material installed.
Optional Damper installed.
Multiple Throat dimensions.

Contact Prairie Heating Products for availability, pricing, and lead time.

Item NO Carton Quantity UOM stock item
SSD112524 14 EA
SSD121824 12 EA
SSD127524 10 EA
SSD132524 9 EA
SSD121824DL 10 EA
SSD121824DLFS 10 EA
SSD132524FS 9 EA

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Slab Duct Soffit Discharge Blueprint
Slab Duct Blueprint
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