Selkirk 4"/5" Firestop Spacer (Oval Type B Gas Vent) Size:5-Inch It is compatible with the

It is compatible with the GL18

the Symmetry can be installed fully recessed into your wall or semi-flush mounted within a 2x4 wall (requires SYM-XS surround)

Enjoy sitting out under a beautifully-crafted structure

Model U45R/25SSCEK Dimensions 45" (DIA

Selkirk 4"/5" Firestop Spacer (Oval Type B Gas Vent) Size:5-Inch It is compatible with theSelkirk 4" 5" OV Firestop Spacer 2x4 Wall The firestop spacers center vent in 16" O. C. stud space and serve as a firestop at the ceiling level. This is a required component for Type B 2 x 4 and multi story Type BW installations. 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