Wall thimbles
A telescoping 7 inch DuraTech thimble for Class A pipe, that fits walls from 5-1/2 to 9-1/2 inches.
A telescoping 7 inch DuraTech thimble for Class A pipe, that fits walls from 5-1/2 to 9-1/2 inches.
Best for: A 7 inch DuraTech chimney through a wall.
DuraVent gives a telescoping fit, a trim plate and a fit between 16 inch studs.
A wall pass-through must match your chimney system, and only listed parts should go through a combustible wall. Read the installation manual, and check with your local inspector first.
No, the title says so.
5-1/2 to 9-1/2 inches.
This model is listed on Amazon.com, at ≈ $265 at the last reading. Listed is not the same as in stock: availability changes daily, and the buy box shows the live price.
Details checked on November 1, 2026.
A 7 inch DuraTech chimney through a wall.
Same shelf, nearest prices. We list only specifications every stove states — gaps compare nothing.
| Model | Price | Diameter | System | Weight |
|---|---|---|---|---|
| DuraVent DuraTech 70736 Wall Thimble, 7 in | $265 | 7 in | DuraTech Class A | 6.7 lb |
| DuraVent DuraPlus Wall Thimble, 8 in | $179 | 8 in | DuraPlus | 7.5 lb |
| DuraVent DuraTech 9643 Wall Thimble, 8 in | $171 | 8 in | DuraTech Class A | 6.9 lb |
| DuraVent 3PVL-WTS Pellet Vent Wall Thimble, 3 in | $80 | 3 in | PelletVent | 1.9 lb |
At $265, it sits +55 % against the $171 median of the 5 models in this category published here.
Specifications: the manufacturer sheet for wood heating equipment and the matching Amazon product page. Prices, ratings and availability: read on Amazon.com from a New York address. Every figure on this page names its source.
A wall thimble for 8 inch DuraPlus triple-wall chimney, for walls from 4-1/4 to 7-1/4 inches thick.
Best for: An 8 inch DuraPlus system.
An 8 inch DuraTech wall thimble, on a three-line listing with 5 ratings at 2.5 out of 5.
Best for: An 8 inch DuraTech system.
A 3 inch wall thimble for DuraVent’s PelletVent system, with no text on the listing beyond the table.
Best for: A pellet stove vent through a wall.
The brush for metal: stiff polypropylene that will not scratch a stainless liner or stove pipe, with 1,591 ratings at 4.6 out of 5.
Best for: A stainless liner or a stove pipe.
A square brush for clay tile flues that reaches the corners a round brush misses.
Best for: A square clay-tile masonry flue.
A tempered steel brush for 6 inch round masonry flues, made in the USA, with 1,323 ratings at 4.7 out of 5.
Best for: A 6 inch round masonry flue.
The price beside each product is fetched as this page opens, and it is the only figure here that is current. Any amount written into the prose was read once, on the day that sentence was written, and nothing has refreshed it since.