Selkirk 4" to 8" Complete Smoothwall Standard Liner Kit (Stainless Flexible Liner)

Length: 25-Feet
Diameter: 4-Inch

Estimated Arrival: Between and . (To All Contiguous States)

✔ Same-Day Order Processing
✔ Free Returns
✔ No Restocking Fees
✔ Financing Options Available

Text or call 888-992-1556, start live chat, or email with any questions. Our team is available to serve you 8:00 AM - 11:59 PM ET, 7 days a week.

Selkirk  4" to 8" Diameter, 25' and 35' Complete Smoothwall Standard Liner Kit

All fuel 316 stainless steel chimney liner.

UL 1777 and ULC-S635 Listed.

Kit includes Chimney Liner, Tee with End Cap, Flashing, and Rain Cap.

Integrated hose clamps allow easy assembly, no adapters or fasteners.

Higher BTU capacity.

Smooth inner wall creates superior draft performance.

SFL - Stainless Flexible Liner

Flexible Stainless Steel Liner is a high performance chimney liner. An integrated hose clamp connection on each component allows quick, easy and secure assembly. No adaptors or fasteners required.

4" to 8" Diameter:

  • 316 Stainless steel
  • Complete Kits, Insert Kits & Pellet Kits available
  • Smooth wall liner is an easy to clean option with higher BTU capacity and superior draft performance
  • Insulation-wrap promotes quick heat up, enhances draft and allows zero clearance between liner and masonry chimney 
  • Can be installed on gas, oil or wood appliances
  • Full line of accessory components
  • Smart Choice warranty on all components


  • Listed to UL 1777 (Flexible Stainless Steel Liner installed with Insulation Wrap) in the U.S.A.

Part Number Product Code
Size (Diameter x Length)
194152 4MF25KTS 4"x25'
194153 4MF35KTS 4"x35'
195154 5MF25KTS 5"x25'
195155 5MF35KTS 5"x35'
196156 6MF25KTS 6"x25'
196157 6MF35KTS 6"x35'
197158 7MF25KTS 7"x25'
197159 7MF35KTS 7"x35'
198160 8MF25KTS 8"x25'
198161 8MF35KTS 8"x35'

CA Residents: 
See Prop 65 WARNING.


Lifetime Limited Warranty

Refer to the Smart Choice Warranty for full warranty details.