Southwark Metal manufactures sheet-metal duct fittings including elbows, transitions, takeoffs, and accessories for residential and commercial HVAC. Its galvanized fittings are stocked by HVAC distributors across the eastern U.S.

Stiebel Eltron is a German manufacturer of tankless electric water heaters, heat-pump water heaters, and heat pumps for space heating. Its Tempra and Accelera lines are widely specified in homes seeking efficient point-of-use or whole-home electric hot water.

Supco (Sealed Unit Parts Company) supplies HVAC and appliance replacement parts including capacitors, motors, hard-start kits, refrigerator parts, and meters. Its catalog covers nearly every legacy and current OEM equipment brand.

SuperStor, an HTP brand, manufactures stainless steel indirect-fired water heaters used with residential and commercial boilers. The product line is a long-running standard in hydronic heating systems combining space and domestic hot water.

Swan, owned by The Swan Corporation, produces solid-surface bath and kitchen products including shower walls, tub surrounds, vanity tops, and laundry tubs. Its solid-surface and AcrylX product lines compete with cultured marble and tile alternatives.

System Sensor, a Honeywell brand, makes commercial fire-detection devices including smoke detectors, heat detectors, duct detectors, and notification appliances. Its products are core components of building fire-alarm and life-safety systems.

T&S Brass and Bronze Works manufactures commercial-grade faucets, pre-rinse units, and plumbing fittings for foodservice, healthcare, and institutional applications. Its B-series faucets and pre-rinse spray valves are workhorse fixtures in commercial kitchens.

Taco Comfort Solutions manufactures hydronic heating components including circulators, zone valves, expansion tanks, and air separators. Its 007 circulator is one of the most-installed pumps in residential hydronic heating in North America.

Terralux supplies products for the HVAC and refrigeration industry, including specialty components and installation accessories. The brand is distributed through HVAC wholesalers serving commercial and industrial mechanical contractors.

The Rubinet Faucet Company manufactures decorative kitchen and bath faucets, shower trim, and accessories in a wide range of finishes. The Canadian brand is a longtime spec in luxury and design-driven bath showrooms.