AC Leak Freeze is a non-polymer refrigerant leak sealant designed to permanently seal small leaks in residential and commercial HVAC systems. The formula works with R-22, R-410A, and other common refrigerants without harming compressor components or contaminating recovery equipment.

Aeroflex USA produces flexible elastomeric foam insulation used to prevent condensation and energy loss on HVAC, plumbing, and refrigeration piping. Its closed-cell tubes, sheets, and tapes meet thermal performance and fire safety requirements for mechanical contractors and engineering specs.

Airgas, an Air Liquide company, is North America's largest distributor of industrial, medical, and specialty gases, plus welding equipment, safety products, and MRO supplies. Its national network of branches, gas plants, and stores serves contractors, manufacturers, and tradespeople.

American Metal Products supplies factory-built chimney, venting, and fireplace systems including Type B gas vent, all-fuel chimney, and pellet stove vent components. The brand serves residential heating contractors and HVAC installers across North America.

American Water Heater Company manufactures residential and commercial gas, electric, and tankless water heaters. The Tennessee-based brand is best known for its Pro-Line and Polaris series and is part of the broader water-heater industry serving plumbing wholesalers.

Amtrol manufactures pressure-rated water tanks for well systems, expansion tanks for hydronic heating, and indirect water heaters. Its Well-X-Trol and Therm-X-Trol product lines are mainstays in residential plumbing and heating installations.

Anaco-Husky produces engineered couplings and fittings for cast iron, plastic, and copper drain-waste-vent systems. Its no-hub couplings, transition fittings, and shielded couplings are stocked across commercial and multifamily plumbing rough-ins.

Apollo Valves, a Conbraco Industries brand, manufactures brass and stainless ball valves, backflow preventers, mixing valves, and gauges for plumbing, hydronics, and industrial fluid systems. Its valves are widely specified for residential service and commercial water distribution.

Aptations designs vanity and makeup mirrors, including the Kimball & Young line, with magnification, integrated LED lighting, and mounted or freestanding configurations. The brand is found in hospitality and high-end residential bathrooms.

Atlas Homewares creates designer cabinet and door hardware including knobs, pulls, and pendant pulls in finishes from solid brass to oil-rubbed bronze. Its collections appear in luxury kitchens, baths, and built-ins.