Simpson Duravent 4 x 6 5/8 Gas Venting. Selling Vertical kit , May Sell Parts Separately. Vertical setup may need offsets or flashing. kits in good shape. Vertical setup 4 x 7 adaptor 48" Length x 3 Vertical radiation shield Storm collar High Wind Vertical Termination Let me know what your looking at and I'll send you a price a pictures.