12 Roof Curb Adaptor"

12" Roof Curb Adaptor, One Piece Welded Construction, All Welds Sprayed With Galvanizing Compound, Factory Install Supply Transition, Fully Insulated With 1"- 11/2 Lb Density Insulation, Fabricated Of Heavy Gauge Galvanized Steel, Supply Dims:161/4" X 24", Return Dims:203/4" X 24", Top Dims:803/4" X 505/8", Bottom Dims:94" X 641/4", Weight:110 Lbs, In Bulk, Made in USA.(For Use With Exisiting Units:Luxaire:Bcb, Bdf 090,120, Dhb, Dhc, Duc, Dus 090-150, New Units:Bp, Dh, Dm, 078-150; Xp, Zf, Zh, Zj, Zr, 078-150; Zh, Zj, Zr 037 & 049 & 061 Df 078-120, Dr 090-150, Dj 150)