A tube sold by the foot, and the listing that makes it safe · review
A 6 inch by 25 ft 316 stainless liner kit with 473 ratings at 4.6 out of 5, and it plainly states its UL 1777 listing.
Rockford states 316 stainless steel, a UL 1777 listing, ULC S635 in Canada, a quick connect system and full DIY instructions.
Our UL 1777 page explains why a named listing is the first thing to look for. Several rivals use softer words, such as code-compliant.
A flexible liner goes inside a sound masonry chimney. Have a CSIA-certified sweep inspect the flue first, match the liner to your stove outlet, and ask whether your chimney needs insulation under the liner’s listing.
| Size | 6 in x 25 ft |
|---|---|
| Material | 316 stainless steel |
| Listing | UL 1777 in the USA, ULC S635 in Canada, stated |
| Connection | Quick connect clamps |
| Warranty | Transferable to the next homeowner, stated |
| Use | Inside a masonry chimney only |
| Amazon reference | B00ND4DRWS |
The listing says UL 1777 in the USA and ULC S635 in Canada.
No. The listing says flexible liners are only to be installed inside a masonry chimney.
8.3/ 10
Our pick: the listing is named, the warranty transfers and the record is strong, 473 ratings at 4.6 out of 5.
This model is listed on Amazon.com, at ≈ $574 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 14, 2026.
A DIY installer who wants a named listing and a large buyer base.
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.
Same shelf, closest price — what the same spend else heats.
316 stainless · 0.006 in · 6 in x 15 ft · top plate with rain cap · appliance connector · made in USA
A 6 inch by 15 ft liner kit in thin 0.006 inch 316 stainless, with a rain cap and top plate, and no UL number on the listing.
Best for: A short chimney on a tight budget, once the listing is confirmed.
≈ $409
316L stainless · 0.006 in · 6 in x 25 ft · tee connector for horizontal hookups · top plate with rain cap · 22 lb
A tee kit for stoves that enter the chimney from the side, in 316L stainless, with 98 ratings at 4.6 out of 5.
Best for: A stove that meets the chimney through a thimble in the wall.
≈ $631
316L stainless · double layer · 8 in x 25 ft · cap, top plate, stove adapter · 43 lb
An 8 inch by 25 ft smooth-wall liner kit for larger stoves, with no ratings yet.
Best for: A stove or insert with an 8 inch outlet.
≈ $800
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.
