Dormont Manufacturing Company
The world's leading provider of flexible stainless steel connectors for natural/LP gas and fluid conveyance applications.
Jay R. Smith Mfg. Co. 
Manufacturer of commercial plumbing and drainage products such as our specialty stainless steel & carbon steel drains (Specialty Drains), custom designed drain grates and covers (Extraordinary Products), rainwater harvesting products, sanitary drains, backwater valves (Flood-Gate), Ultracept® Oil/Water Separator, Remediator® Grease Treatment System & other specialty plumbing products.
Mifab Manufacturing 
Access doors, valve boxes, grease, oil, solids, specialty interceptors, trap seal primers, fixture supports, floor, roof and trench drains , cleanouts, wall and ground hydrants, floor sinks, backwater valves, water hammer arrestors, C-PORT pipe supports, backflow preventers, pressure reducing valves, gauges, siphonic roof drains , no hub couplings and fabricated stainless steel trench and floor drains.
Savard Plumbing Company
Offers a wide range of PVC and stainless steel flexible water supply lines for faucets, toilets, refrigerator ice makers, washing machines, dishwashers, and water heaters as well as water supply installation kits, angle & straight supply stops and tubing.
Watts 
Since 1874 a leading manufacturer of water safety & flow control products, backflow prevention devices, water quality & conditioning products, specification drainage products, brass & tubular products, control valves, potable PEX plumbing products, Quick-Connect Push Fit Solutions, and Custom OEM Products.
See also: 22 3051 - ADA Undersink Pipe Insulation
Dormont Manufacturing Company
The world's leading provider of flexible stainless steel connectors for natural/LP gas and fluid conveyance applications.
Jay R. Smith Mfg. Co.
Manufacturer of commercial plumbing and drainage products such as our specialty stainless steel & carbon steel drains (Specialty Drains), custom designed drain grates and covers (Extraordinary Products), rainwater harvesting products, sanitary drains, backwater valves (Flood-Gate), Ultracept® Oil/Water Separator, Remediator® Grease Treatment System & other specialty plumbing products.
Mifab Manufacturing
Access doors, valve boxes, grease, oil, solids, specialty interceptors, trap seal primers, fixture supports, floor, roof and trench drains , cleanouts, wall and ground hydrants, floor sinks, backwater valves, water hammer arrestors, C-PORT pipe supports, backflow preventers, pressure reducing valves, gauges, siphonic roof drains , no hub couplings and fabricated stainless steel trench and floor drains.
Savard Plumbing Company
Offers a wide range of PVC and stainless steel flexible water supply lines for faucets, toilets, refrigerator ice makers, washing machines, dishwashers, and water heaters as well as water supply installation kits, angle & straight supply stops and tubing.
Watts
Since 1874 a leading manufacturer of water safety & flow control products, backflow prevention devices, water quality & conditioning products, specification drainage products, brass & tubular products, control valves, potable PEX plumbing products, Quick-Connect Push Fit Solutions, and Custom OEM Products.