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SW420SSK SmoothWall Double Ply Stainless Steel Chimney Liner Kit, 4-Inch x 20-Feet

  • Based on 13 reviews
Condition: New
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Availability: In Stock.
Fulfilled by Chimney Depot

Arrives Wednesday, Mar 18
Order within 21 hours and 40 minutes
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Features

  • Crafted from Premium 316L Stainless Steel for Superior Durability and Safety: Built with premium 316L stainless steel, this Chim Cap Chimney Liner Kit delivers outstanding strength, flexibility, and corrosion resistance. Its double-ply and multiple corrugations form a secure, gas- and watertight seal that helps prevent chimney fires and carbon monoxide leaks while maintaining long-lasting structural performance
  • Effortless all-in-one installation kit: This complete system includes a 13" x 13" top plate with integrated rain cap, tee, tee cap and fasteners, a durable .012" thick stainless-steel liner, and a tee connector for easy horizontal appliance connections. The kit delivers a secure, moisture-resistant chimney upgrade that helps prevent corrosion, reduce costly repairs, and improve overall draft and heating performance.
  • SmoothWall Liner Boosts Draft and Energy Efficiency by 20%: Engineered to optimize airflow and combustion, this advanced chimney liner system enhances the performance of wood stoves, fireplaces, and furnaces. It promotes cleaner, more efficient burning, reduces creosote buildup, and improves overall heating output for wood-burning, gas, and pellet appliances.
  • Durable, code-compliant stainless steel chimney liner for wood, gas, oil, and pellet appliances: It meets current safety standards to help reduce chimney fire risk and is ideal for fireplace inserts, wood stoves, and gas appliances, delivering long-lasting protection and peace of mind.
  • Proudly Made in the USA from mill-certified stainless steel: SmoothWall heavy-duty chimney liner kits deliver exceptional strength and outstanding resistance to moisture and corrosion. Manufactured under strict, repeatable quality standards, using premium materials you can rely on for both residential homes and demanding commercial installations. The careful manufacturing process helps ensure consistent fit, finish, and performance from job to job, giving installers confidence.

Description

Smooth Wall Double Ply Flex-All Chimney Liner is made from a single strip of 316 grade .006" stainless steel. Corrugated interlocked seam on the outside provides for maximum strength and flexibility. Smooth interior inner ply wall creates positive air flow that increases drafting by 20%, while eliminating creosote build up. Unbreakable seem locks are leak proof, air and water tight Excellent choice for relining masonry chimneys. All propose, can be used with gas, wood pellet, oil, or wood appliances. Applications include: fireplace inserts, furnaces, boilers, water heaters, gas and wooding burning stoves. Backed by a Lifetime Warranty. Smooth Wall Double Ply Chimney Liner Kits included the following parts, a 4" x 20 FT length of double ply chimney liner, 2-part tee, tee cap, 14 x 14 top plate with drip collar, round cap, fasteners, installation instructions and homeowner's warranty card. From the Manufacturer Smooth Wall Double Ply Flex-All Chimney Liner is made from a single strip of 316 grade .006" stainless steel. Corrugated interlocked seam on the outside provides for maximum strength and flexibility. Smooth interior inner ply wall creates positive air flow that increases drafting by 20%, while eliminating creosote build up. Unbreakable seem locks are leak proof, air and water tight Excellent choice for relining masonry chimneys. All propose, can be used with gas, wood pellet, oil, or wood appliances. Applications include: fireplace inserts, furnaces, boilers, water heaters, gas and wooding burning stoves. Backed by a Lifetime Warranty. Smooth Wall Double Ply Chimney Liner Kits included the following parts, a 4" x 20 FT length of double ply chimney liner, 2-part tee, tee cap, 14 x 14 top plate with drip collar, round cap, fasteners, installation instructions and homeowner's warranty card.

Brand: Forever Vent


Material: Stainless Steel


Color: Silver


Product Dimensions: 240"L x 4"W


Finish Type: Powder Coated


Brand: ‎Forever Vent


Material: ‎Stainless Steel


Color: ‎Silver


Product Dimensions: ‎240"L x 4"W


Finish Type: ‎Powder Coated


Style: ‎Rustic


Manufacturer: ‎Forever Vent


UPC: ‎640425404207


Global Trade Identification Number: ‎07


Part Number: ‎SW420SSK


Item Weight: ‎23.4 pounds


Item model number: ‎SW420SSK


Is Discontinued By Manufacturer: ‎No


Finish: ‎Powder Coated


Item Package Quantity: ‎1


Included Components: ‎Chimney Liner


Batteries Included?: ‎No


Batteries Required?: ‎No


Warranty Description: ‎Limited lifetime.


Date First Available: October 9, 2012


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Wednesday, Mar 18

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Leasing options through Acima may also be available during checkout.

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Top Amazon Reviews


  • Awesome
Chimney liner was easy to install and the cost was cheaper than some of the other brands
Reviewed in the United States on February 20, 2021 by John

  • WOOD PELLET STOVE CHIMNEY LINER
STURDY AND EASY TO INSTALL
Reviewed in the United States on May 8, 2021 by james marker

  • Good buy
Good Quality
Reviewed in the United States on August 30, 2021 by Brian Benoit

  • ... T you had to screw it closet was not happy about that
The T was not a solid T you had to screw it closet was not happy about that, cheap for the high price I paid, but the rest of the stuff was ok !
Reviewed in the United States on November 27, 2017 by Rick

  • Great buy
Was a perfect fit
Reviewed in the United States on February 22, 2020 by Amazon Customer

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