This firestop works perfectly with other DirectVent Pro 4 inch inner diameter vent pipes and components. It carries a limited lifetime warranty and it is designed for use with DirectVent Pro Horizontal High-Wind Rain Caps. Save money by not having to buy multiple components and save time with the easy installation by tackling a combustible wall pass-through with a Dura-Vent DirectVent Pro Wall Thimble.
I would recommend this item to a friend.
Dura-Vent Wall thimble
November 30, 2011
Exactly what I needed, at a reasonable price, with incredibly fast shipping.
Pros:Does the job.