New Business Hours for Select Branches: The Fabrication Shop in Wilmington, MA, along with Auburn, MA, Portsmouth, NH, and Williston, VT, will be open from 7:00 AM to 4:00 PM, Monday - Friday.

IPEX 397071

IPEX 397071 System 1738 2" 45 Street Elbow. PVC Flue Gas Venting System Certified to UL 1738.

  • Manufacturers: IPEX
  • Brand Name: IPEX
  • Item #: 64950
  • Rebate Amount:
  • MPN: 397071
  • Qty. Interval: 1
  • Availability: Login for Availability

The use of plastic venting systems on gas fired water heaters, furnaces and boilers has undergone a significant change. The NFPA 54-18 and IFGC-18 Fuel Gas Codes now recognize the UL 1738 venting standard across the United States. There is a safety concern for Foam Core DWV pipe and fittings in FGV applications. Product failures have prompted the appliance manufacturers to remove cell core PVC from the appliance standards. Solid wall PVC is still permitted but were never intended to be used in FGV applications but are often chosen because they are inexpensive.


First-of-its kind, System 1738® is a system fully certified to UL 1738, consisting of pipe, fittings, termination kits, and cement manufactured to strict quality, performance, and dimensional standards.


Our PVC flue pipe is rated for a maximum flue gas temperature of 149°F and is fully certified to the rigorous requirements of UL 1738 vent pipe standard for gas-burning appliances, Categories II and IV.

Model      :      397071
End Type      :      Plain Ends
Inside Diameter      :      2 in.
Bend Radius      :      Street
Temperature Rating      :      149 Deg F
Material      :      PVC
Material Standard      :      UL 1738
Color      :      Black
  • UL 1738 certified vent system for Categories II and IV gas burning appliances
  • Rated for flue gas temperatures up to and including 149°F (65°C) • Sizes include 2", 3", and 4"
  • Pipe, fittings, cement, and venting accessories
  • Availability of cutting and bevelling tools to ensure proper joint installation
  • Terminations and accessories can be painted to match building exteriors
  • Installation training and literature support
  • National distribution UL 1738 certified vent system for Categories II and IV gas burning appliances
  • Rated for flue gas temperatures up to and including 149°F (65°C)
  • Sizes include 2", 3", and 4" • Pipe, fittings, cement, and venting accessories
  • Availability of cutting and bevelling tools to ensure proper joint installation
  • Terminations and accessories can be painted to match building exteriors
  • Installation training and literature support
  • National distribution