Selkirk® by Duravent LockTab® 104012 RV Series Type B Small Diameter Double Wall Round Gas Vent Pipe, Steel, 4 in Dia x 12 in L, Galvanized, Domestic

4RV12 MFG #: 104012
  • Country of Origin: US
  • Diameter: 4 in
  • Domestic/Import: Domestic
  • Finish: Galvanized
  • Length: 12 in
  • Manufacturer Name: Duravent Group, Selkirk Corporation
  • Material: Steel
  • Series: RV Series
  • Thickness: 0.012 in
  • Type: Type B Small Diameter Double Wall Round
Our non-positional lock system on the Selkirk® by Duravent RV Gas Vent is the best lock system on the market today. The incorporation of the LockTab® feature simply improves our lock system by adding flexibility and meeting market needs.
  • Features and More


  • The locktab is located on the female end of the gas vent
  • Assemble the gas vent sections
  • The locktab is then depressed with a thumb or blunt object such as a screwdriver into the lock channel of the male end
  • To disengage the locktab, pry it up by using a screwdriver or knife blade
  • The RV line of Selkirk round vent pipe and fittings is designed for use on approved gas appliances in residential and light commercial and industrial applications
  • Round vents for large appliances will be found in the QC section which follows
  • The Outside Diameter of RV is approximately 1/2 in larger
  • Outer material is 28 ga galvanized steel and inner liner is aluminum
  • Easy to assemble and can be combined to obtain the required installation height
  • Sectional overlap of 1.5 in and hence net assembled length is 1.5 in less than listed lengths
  • Inner liner of aluminum alloy 1100, 3003, 3104, 3105 or 5010
  • Outer wall of UL recognized G90 galvanized steel


  • For venting negative pressure gas-burning appliances


  • NFPA 211/54
  • UL 441
  • ULC S605