4" inch, 4Vp-Ts, Pellet Vent Tee with Tee Cap. Type L pellet vent tee cap can be removed for inspection and clean out. Replaces the pipe connector and is used to transition from horizontal to vertical orientation. Features rolled-over male end which eliminates sharp edges and internal spacing bead that assures uniform insulating air space between pipe walls. From the Manufacturer 4" inch, 4Vp-Ts, Pellet Vent Tee with Tee Cap. Type L pellet vent tee cap can be removed for inspection, and clean out. Replaces the pipe connector, and is used to transition from horizontal to vertical orientation. Features rolled-over male end which eliminates sharp edges, and internal spacing bead that assures uniform insulating air space between pipe walls.