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    ProductApplication

    DWGV

    Double Wall Gas Vent

    Special Gas Vent for Categorized Appliances

    JI – sample spec – DWGV

    SWGV

    Single Wall Gas Vent

    Special Gas Vent for Condensing Appliances

    JI – sample spec – SWGV

    DWKL-Vt

    Double Wall Gas Vent, Type L Vent, & Pressure Stack

    Conical Joint for all applications up to 1200°F; gas or oil fired.

    With 1.25” cut fiber insulation, Ø3”- Ø16”. Requires tapping to fully engage.

    JI – sample spec – DWKL-Vt

    DWKL-Lt

    Double Wall All-in-One Exhaust System

    Conical Joint for all applications. With 1.25” thick compressed ceramic fiber

    insulation. Requires tapping to fully engage.

    Ø3”- Ø16”.

    JI – sample spec – DWKL-Lt

    SWKL-Vt

    Single Wall All-in-One Exhaust System

    Conical Joint for all applications. Requires tapping to fully engage. 

    Ø3”- Ø16”.

    JI – sample spec – SWKL-Vt

    DWFL

    Double Wall Flanged Joint All-in-One Exhaust System

    With 1.25” air space insulation. 

    Ø6”- Ø36”.

    JI – sample spec – DWFL
    DWFL (+1+2+3+4)

    Double Wall Flanged Joint All-in-One Exhaust System

    With various thicknesses of compressed ceramic fiber insulation.

    Ø6”- Ø36”.

    JI – sample spec – DWFL+1+2+3+4
    DWFL-ZC

    Double Wall Flanged Joint System with Zero Clearance & Fire-Rated Enclosure

    With 3.25” thick high density ceramic fiber insulation. Manufactured specifically

    to achieve the UL 2221 two-hour fire-rated-resistant enclosure/duct assembly.

    Ø6”- Ø36”. Two different specifications: One for Gas Vent; One for Grease Duct.

    JI – sample spec – DWFL-ZC Gas Vent

    JI – sample spec – DWFL-ZC Grease Duct

    SWFL

    Single Wall Flanged Joint All-in-One Exhaust System

    Ø6”- Ø36”.

    JI – sample spec – SWFL
    SWGD

    Single Wall Grease Duct System.

    Can be fire-wrapped.  Designed to be replacement for field-fabricated steel.

    Conical joint in Ø3”- Ø16”; flanged Joint up to Ø36”.

    JI – sample spec – SWGD
    DWGD+1

    Double Wall Flanged Joint Grease Duct System.With 1.25” thick compressed ceramic fiber insulation. For reduced clearances to combustibles. Ideal for single story buildings where vent does not penetrate a fire-rated shaft assembly. Popular for pizza oven venting.

    Ø6”- Ø36”.

    JI – sample spec – DWGD+1

    DWGD-ZC

    Double Wall Flanged Joint System with Zero Clearance & Fire-Rated Enclosure for Grease Duct With 3.25” thick special high density compressed ceramic fiber insulation. Listed for UL 1978 and UL 2221 two-hour fire-rated-resistant enclosure/duct assembly.

    Ø6”- Ø36”.

    JI – sample spec – DWGD-ZC

    25 years warranty!