Selkirk 4" BW Install Kit (Oval Type B Gas Vent) d15.5 Increase the opening of a

Increase the opening of a fireplace by 8"

Decorative Optional Trim

Decorative Log Set

Black Upper and Black Lower Louvres

with the appearance of true wood grain

Selkirk 4" BW Install Kit (Oval Type B Gas Vent) d15.5 Increase the opening of aSelkirk 4" BW Install KitThe Type BW installation kit contains one pair of Type BW plate spacers (40V CS) and one BW Hold Down Plate (40V BP). Oval Type B Gas VentModel OV Type B Gas Vent offers all of the advantages and installation conveniences of round pipe in a compact oval design. An aluminum inner liner designed to assure quick vent action and minimal condensation. Complete line of components that work together with Model RV round Type B Gas