Gray Metal Products, Inc., is a family owned business started in 1906, is a full line manufacturer of heating and air conditioning products. For several decades, Gray Metal Products line has been sold to the wholesale distributors and wholesale hardware chains. Our product lines consist of prefabricated air duct and fittings for HVAC, black stovepipe and fittings, as well as hearth accessories and insulated Flexible air duct products.

Holyoke Fittings W30

Hart & Cooley 10RP18 B-Vent Pipe 10" x 18" Gas Vent System Steel/Aluminum

Hart & Cooley 10REA45

M & G Duravent PolyPro 2PPC-P1000 Polypropylene Concentric Half Meter 2" x 4" x 39",

M & G Duravent 2PPC-HVKA

Z-Flex 2SVEPWCF041.5 Pipe Stainless Steel 4",
Z-Flex Z-Vent is rated AL29-4C and is approved for Category I (vertical only), II, III & IV applications and is designed for use with boilers, high efficiency gas and oil heaters and water heaters where cool flue gases are vented under pressure. Z-Vent contains a built-in, fail-safe gasket and locking band connection. No sealant is required.,

Z-Flex 2SVEPWCF0405

M & G Duravent PolyPro 2PPC-E45 Polypropylene 3-7/8"x 45 Degree Concentric Gas Vent Elbow,

Leslie-Locke 3050

Type B gas vent products are tested and listed to UL 441 for approved gas appliances and feature our innovative twist-lock connection and locking tab, eliminating the need for sheet metal screws. Metal-Fab type B gas vent combines hemmed flues and casings that maximize product durability and reliability and minimize installation time. Designed for versatility, Metal-Fab type B gas vent products 3 - 6" adapt to major competing brands and when installed establish a UL Listed connection

Metal-Fab 3MCHP

Selkirk 0.012" Aluminum Inner and 0.018" G90 Galvanized Steel
Selkirk RV round vent pipe is a listed Type B gas vent pipe. Its adjustable fittings and standard short lengths eliminate all cutting, fitting and special engineering. An improved joint design provides for a rapid and secure connection in seconds. The use of our LockTab feature gives installers the option of engaging this tab instead of using sheet metal screws.

Selkirk 206148U

Type B gas vent products are tested and listed to UL 441 for approved gas appliances and feature our innovative twist-lock connection and locking tab, eliminating the need for sheet metal screws. Metal-Fab type B gas vent combines hemmed flues and casings that maximize product durability and reliability and minimize installation time. Designed for versatility, Metal-Fab type B gas vent products 3 - 6" adapt to major competing brands and when installed establish a UL Listed connection

Metal-Fab 3M5

Type B gas vent products are tested and listed to UL 441 for approved gas appliances and feature our innovative twist-lock connection and locking tab, eliminating the need for sheet metal screws. Metal-Fab type B gas vent combines hemmed flues and casings that maximize product durability and reliability and minimize installation time. Designed for versatility, Metal-Fab type B gas vent products 3 - 6" adapt to major competing brands and when installed establish a UL Listed connection

Metal-Fab 3MIN4

Type B gas vent products are tested and listed to UL 441 for approved gas appliances and feature our innovative twist-lock connection and locking tab, eliminating the need for sheet metal screws. Metal-Fab type B gas vent combines hemmed flues and casings that maximize product durability and reliability and minimize installation time. Designed for versatility, Metal-Fab type B gas vent products 3 - 6" adapt to major competing brands and when installed establish a UL Listed connection.

Metal-Fab 4M6

Selkirk 0.012" Aluminum Inner and 0.018" G90 Galvanized Steel
Selkirk RV round vent pipe is a listed Type B gas vent pipe. Its adjustable fittings and standard short lengths eliminate all cutting, fitting and special engineering. An improved joint design provides for a rapid and secure connection in seconds. The use of our LockTab feature gives installers the option of engaging this tab instead of using sheet metal screws.

Selkirk 4RV-4FY

VP Supply 4MSC B-Vent Storm Collar 4"

VP Supply 4MSC