SELKIRK CORP 243410 Ceiling Support/Firestop, 3-Inch, x 9-1/2" 3", 3VP-CS, Ceiling Support and Firestop, Model VP, Type L Pellet Vent Must be installed when passing through a floor or ceiling in a properly framed opening Required by most local codes Use only with Selkirk pellet stove pipe Made of durable, steel construction