Venting-Cat3 Ss 4 Wall Thim 4.5-7.5

Corr/Guard double-wall, laser welded stainless steel gas venting features a snap-lock tab connection for quick and secure assembly and requires fewer supports on horizontal runs. A seamless, precision-molded gasket prevents leaks and delivers a solid seal. UL Listed, tested and labeled to UL 1738 for Category II , III nd IV appliances with a 5 year warranty.