3" inch, 3RV-TC, Round, Type B, Gas Vent Tee Cap * Tee cap is used for closing off the bottom of the tee * RV series offers round gas vent pipe and fittings for residential, commercial and industrial applications * Features a snap together, non-positional lock system, die formed ends and eliminates the need for all cutting, fitting and special engineering * Has an improved joint design provides for secure connection in seconds