Selkirk 5" to 8" Top Kit Extension (Stainless Flexible Liner)

Size: 5-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  5" to 8" Diameter, Top Kit Extension

The Top Kit Extension is a rigid section that can be used to extend the height of your flex liner system.

The extension attaches the EZ top plate and the rain cap.

Manufactured in 24ga 304 stainless steel with an EZ clamp for easy connection.

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
195126 5MFTKE 5-Inch
1955127 55MFTKE 5.5-Inch
196128 6MFTKE 6-Inch
197129 7MFTKE 7-Inch
198130 8MFTKE 8-Inch

CA Residents: 
See Prop 65 WARNING.


Lifetime Limited Warranty

Refer to the Smart Choice Warranty for full warranty details.