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R45 — 45-degree Elbow

How to Specify

Using tables from the National Fuel Gas Code or our Sizing & Application Guide, determine the diameter of venting required. The Sizing & Application Guide also offers tips on good design including multi-appliance system sizing and design.

How to Purchase

Vent FAQs

R45 — 45-degree Elbow

Assets/Details

Submittal Data (57 KB, PDF)
  • 14" elbow is adjustable.
  • 16" through 30" elbows are fixed.

45° Elbow Dimensions (inches)

ModelSizeDim. ADim. B =
14R4514"6 5/8"6 1/2"
16R4516"7"7"
18R4518"7 9/16"7 1/2"
20R4520"8 1/2"8 5/8"
22R4522"8"7 5/8"
24R4524"8 5/8"8 5/16"
26R4526"9"9"
28R4528"9 1/2"9 1/2"
30R4530"10"10"