This video will show you what an appliance adapter is, what it does, and how to install it.
Product list:
3" appliance adapters:
https://comfortbilt.net/products/duravent-3-pelletvent-pro-galvalume-appliance-adapter-3pvp-ad
https://comfortbilt.net/products/duravent-3-pelletvent-pro-black-appliance-adapter-3pvp-adb
3" - 4" adapter expander:
https://comfortbilt.net/products/duravent-3-pelletvent-pro-3-4-black-increaser-3pvp-x4ad
https://comfortbilt.net/products/duravent-3-pelletvent-pro-3-4-black-increaser-3pvp-x4adb
3" - 4" adapter expander Tee:
https://comfortbilt.net/products/duravent-3-pelletvent-pro-black-increaser-adapter-tee-3pvp-tadx4b1
3" adapter Tee:
https://comfortbilt.net/collections/pellet-stove-3-piping/products/3pvp-tad1
High Temperature Sealant:
https://comfortbilt.net/products/mill-pac-black-high-temp-sealant
