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RPA/R18A — Adjustable Length Pipe

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

RPA/R18A — Adjustable Length Pipe

Assets/Details

HC_RPA_drw

Adjustable Length Pipe dimensions (inches)

ModelSizeListed Length*
3RPA3"12"
4RPA4"12"
5RPA5"12"
6RPA6"12"
7RPA7"18"
8RPA8"18"
10RPA10"18"
12RPA12"18"
14R18A14"18"
16R18A16"18"
18R18A18"18"
20R18A20"18"
22R18A22"18"
24R18A24"18"
26R18A26"18"
28R18A28"18"
30R18A30"18"

* Overlap: Minimum 1". Maximum overlap on a 12" length is 10". Maximum overlap on an 18" length is 16".