IPEX’s System 1738 Flue Gas Venting (FGV) is certified to UL 1738. It consists of pipe, fittings, cements and accessories. System 1738 is manufactured to the strict quality, material and system performance requirements of the UL 1738 standard for venting categories II and IV gas-burning appliances, the company notes. It is rated for flue gas temperatures up to 149° F, and includes 2”, 3” and 4” sizes.

IPEX. www.ipexna.com