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CU — Universal Cap (10"-30")

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

CU — Universal Cap (10"-30")


Submittal Data (56 KB, PDF)
  • Barriers provided in cap opening spaced less than 1" are designed to resist entry of birds.
  • Slips into most B Vent.

CU Dimensional

Universal Cap dimensions (inches)

ModelSizeDim. ADim. B
18CU18"28 1/4"13 1/2"
20CU20"31 1/2"15"
22CU22"34 1/2"16 1/2"
24CU24"37 3/4"18"
26CU26"42"19 1/2"
30CU30"48"22 1/2"