All Forever Flex chimney liner kits come with a specified length of chimney liner plus:
Choice of Vent style:
Rear Vent (Includes Tee w/ cover) , Top Vent (Includes appliance connector)
Choice of rain cap:
Quick Cap with screen (Standard), Quick Cap without screen (No spark arrestor), Quick Cap with Screen (No windguard),California Cap with screen (5/8" screen for CA codes)
Choice of top plate:
No sag / No leak 13"x13" top plate (standard), No sag / No leak 13"x18" top plate, No sag / No leak 18"x18" top plate, Flat top plate 13"x13", Flat top plate 13"x18", Flat top plate 18"x18"
Just choose from the drop down boxes on the item page before adding it to the cart.