Double Wall Insulated Grease Duct

Conical kl silicone and gasket free joining push fit systems.

Double wall insulated grease duct.

3g grease duct systems are tested and listed to ul 1978 and ul 2221. Access panel included no tools required. Single wall grease duct is etl listed to ul standard 1978 grease ducts and can ulc s662. Our prefabricated double wall round grease ducts are designed and built for vertical runs and don t require field welding or secondary insulation.

Double wall kitchen exhaust vent 3 ceramic insulated metal fab grease duct products are manufactured in a strictly controlled environment that enhances product precision reliability and safety. Outer wall constructed of ul 304 stainless steel inner wall constructed of 400 series stainless. 12 diameter grease duct 45 degree elbow w access. Recommended duct sizes medium duty hood lengths 5 6 7 5.

Double wall zero clearance. Not only has this patented ul 2221 classified product been tested for zero clearance to combustibles it eliminates the need for a fire rated chase with its 2 hour fire rating. Duct requires no on site welding and is leak tested at the factory for quality assurance. Double wall grease duct is etl listed to ul standard 1978 and ul standard 2221 grease duct enclosure assemblies.