4 Type L Pellet Pipe Storm Collar from the VP Collection. The storm collar serves as a counter flashing to prevent water from leaking between flashing and pipe. It requires hi-temp silicone sealant to seal the inner edge. The VP Collection features proven coupling joint connects in seconds to assure joint integrity, gasketed joint design, painted pipe lengths available for interior use. The rolled-over male end eliminates sharp edges, and internal spacing bead assures uniform insulating air space between pipe walls. VP pellet pipe works for pellet or corn burning stoves approved for use with PL-Vent. The appliance's flue gases must not exceed 570-F and the pipe is UL Listed to ULC S609, ULC ORD C441 and UL 641. Gasketed joint design. Internal spacing bead assures uniform insulating airspace.Clearance: 1 to combustibles Fuels: Pellet, Corn Materials: Inner wall 304 stainless steel and outer wall paintable galvanized Temperature: 570 degrees F UL Listed: UL641