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TLCITP — Insulated Tee Cap

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. The System Design and Installation Guide is an additional resource.

TLCITP — Insulated Tee Cap


  • Permits typical 2” airspace clearance to combustibles.
  • 5” to 8” sizes are twist-lock and for non-wall support applications only.
  • 10” to 14” sizes are press-fit design.

AV_TLCITP_Insulated Tee Cap

Available sizes (inches)

ModelSizeOD AID BHeight C
5TLCITP5"752 7/8
6TLCITP6"862 7/8
7TLCITP7"972 7/8
8TLCITP8"1082 7/8