Duravent 4PVP-CO1 Stainless Steel 4 Inches Inner Diameter - Pellet Vent Pro Type L Chimney Pipe - Double Wall - Button Lock Tee Cap

Duravent Pro Galvalume 4PVP-CO1 Stainless Steel 3" Inner Diameter - Pellet Vent Pro Type L Chimney Pipe - Double Wall - Button Lock Tee Cap. The older 4PVP-CO twist lock cap is no longer avbailable. Also it is recommended to lube the cap with a permatex or never-seez product for future easy removal