NEW STYLE PUSH TAB. THIS WILL NOT WORK ON OLD STYLE TWIST & LOCK SYSTEM.
4" PelletVent PRO, Increaser Adaptor Tee w/ Clean-Out Tee Cap.
This is a 4" Pellet Chimney Stainless Steel Clean-Out Tee Cap, this is from the PelletVent Pro Line. It has the duralock tightening system, to get a tight fit. Use this clean-out tee cap as a replacement with the Tee.