Item # bci1792280

DuraVent 4" Inner Diameter - DuraFlex Pro Flexible Liner Chimney Pipe - Single Wall - Vertical Cap Kit Includes Top Plate with welded Storm Collar and Cap

Model: 4DFS-VCK

Finish: Choose Finish
  • Stainless Steel
    Stainless Steel
    2 In Stock

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2 In Stock

Product Overview

DuraFlex SS Collection 4" Vertical Cap Kit

This kit comes with a top plate with a welded storm collar and a cap. The Flex liner remains secured to the storm collar and top plate when you remove the cap section for inspection and cleaning.

DuraFlex SS is the ultimate in flexible steel liners for strength and flexibility. It features 20% more stainless steel per foot compared to other liners on the market. Its extreme flexibility facilitates problem free installations where multiple offsets are needed. DuraFlex Pro is available in 3” through 12” diameters in lengths, kits and custom lengths. DuraFlex Pro is manufactured utilizing highly corrosion resistant 316 Stainless Steel. Listed to UL 1777 and ULC S635.


  • Inner Diameter: 4"
  • UL Listed
  • UL Listed

Looking for Simpson Dura-Vent? You found it! Simpson Dura-Vent has changed their name to DuraVent. DuraVent is a recognized technological leader in the venting industry. Consistently the first to market with new innovations in venting systems, DuraVent has captured a leadership position in emerging markets. DuraVent has patents for several products and continues to design safe and technologically advanced venting. The company's research into solving problems with corrosion, when biofuels such as corn are used, led to the break-through patent for PelletVent Pro. Scientifically proven materials and unequalled engineering make DuraVent products not only the best choice, or safest choice, but the only choice for professional quality venting products.

This product is listed under the following manufacturer number(s):

Manufacturer Resources

Dimensions and Measurements

Inner Pipe Gauge
Outer Pipe Gauge
Pipe Inside Diameter
4 in.

Characteristics and Features

Vertical Cap Kit
Inner Pipe Material
316 Stainless Steel
Stainless Steel
Outer Pipe Material
316 Stainless Steel
Pipe Shape
Vent Construction
Single Wall

Electrical and Operational Information

Fuel Type
Gas, Oil, Wood, Pellet

Warranty and Product Information

Boiler, Fireplace, Furnace, Water Heater
Approved for Commercial Use
DuraFlex Pro
Manufacturer Warranty
Limited Lifetime
UL Listing Number
UL 1777, ULC S635