Industry Description
This industry comprises establishments primarily engaged in the merchant wholesale distribution of plumbing equipment, hydronic heating equipment, household-type water heaters, and/or supplies.
Cross-References. Establishments primarily engaged in--
Business Examples
Common types of business activities within NAICS 423720 - Plumbing and Heating Equipment and Supplies (Hydronics) Merchant Wholesalers are:
- Brass goods, plumbers', merchant wholesalers
- Boilers (e.g., heating, hot water, power, steam) merchant wholesalers
- Plumbing equipment merchant wholesalers
- Drinking fountains (except refrigerated) merchant wholesalers
- Bathtubs merchant wholesalers
- Oil burners, heating, merchant wholesalers
- Fireplaces, gas, merchant wholesalers
- Fountains, drinking (except refrigerated), merchant wholesalers
- Gas fireplaces merchant wholesalers
- Solar heating panels and equipment merchant wholesalers
- Convectors merchant wholesalers
- Valves, plumbing and heating, merchant wholesalers
- Plumbing and heating valves merchant wholesalers
- Water purification equipment, household-type, merchant wholesalers
- Sinks merchant wholesalers
- Radiators, heating, nonelectric, merchant wholesalers
- Fittings and valves, plumbers', merchant wholesalers
- Water softening and conditioning equipment merchant wholesalers
- Gas hot water heaters merchant wholesalers
- Furnaces (except forced air), heating, merchant wholesalers
- Burners, fuel oil and distillate oil, merchant wholesalers
- Pipe fittings and valves, plumbers', merchant wholesalers
- Plumbing supplies merchant wholesalers
- Plumbers' brass goods merchant wholesalers
- Lavatory fixtures merchant wholesalers
- Pipe and boiler coverings merchant wholesalers
- Sanitary ware, china or enameled iron, merchant wholesalers
- Fireplaces, prefabricated gas, merchant wholesalers
- Heating boilers, steam and hot water, merchant wholesalers
- Stoves (i.e., noncooking), heating, merchant wholesalers
- Hydronic heating equipment and supplies merchant wholesalers
- Urinals merchant wholesalers
- Spa equipment merchant wholesalers
- Heating equipment, hot water, merchant wholesalers
- Toilet bowls and tanks merchant wholesalers
- Water heaters, gas and electric, merchant wholesaler
- Plumbing fixtures merchant wholesalers
IBISWorld Industry Research Report
Plumbing & Heating Supplies Wholesaling in the US (42372)
Revenue 2025
$139.8bn
Growth 2025
1.14%
Key Trends
Industry operators have responded to wholesale bypass by adding additional value
Strong demand from home improvement projects has supported industry revenue growth
Improving economic conditions will encourage developers to invest in housing units
Products and Services
Similar Industries
For some business types, there may be a similar industry to 423720 - Plumbing and Heating Equipment and Supplies (Hydronics) Merchant Wholesalers that is a better classification match. Establishments primarily engaged in:
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NAICS Cross Reference
Selling and installing plumbing, heating and air-conditioning equipment--are classified in Industry 238220, Plumbing, Heating, and Air-Conditioning Contractors;
IBISWorld industry research report
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NAICS Cross Reference
Merchant wholesale distribution of household-type gas and electric appliances (except water heaters and heating stoves (i.e., noncooking)), room air-conditioners, clothes dryers, and/or household-type audio or video equipment--are classified in Industry 423620, Household Appliances, Electric Housewares, and Consumer Electronics Merchant Wholesalers.
IBISWorld industry research report
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NAICS Cross Reference
Merchant wholesale distribution of warm air heating and air-conditioning equipment--are classified in Industry 423730, Warm Air Heating and Air-Conditioning Equipment and Supplies Merchant Wholesalers; and
IBISWorld industry research report
NAICS Hierarchy 423720 - Plumbing and Heating Equipment and Supplies (Hydronics) Merchant Wholesalers
NAICS Code 423720 - Plumbing and Heating Equipment and Supplies (Hydronics) Merchant Wholesalers sits in the 2-digit Plumbing and Heating Equipment and Supplies (Hydronics) Merchant Wholesalers sector. NAICS codes can be 2- to 6-digits and the further along the hierarchy, the more detailed and specific the category will be. Learn more about the structure of NAICS codes
2 Digits: 42
Sector Title: Wholesale Trade
3 Digits 4 Digits 5 Digits 6 Digits
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4231 Motor Vehicle and Motor Vehicle Parts and Supplies Merchant Wholesalers
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42311 Automobile and Other Motor Vehicle Merchant Wholesalers
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42312 Motor Vehicle Supplies and New Parts Merchant Wholesalers
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42313 Tire and Tube Merchant Wholesalers
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42314 Motor Vehicle Parts (Used) Merchant Wholesalers
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4232 Furniture and Home Furnishing Merchant Wholesalers
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42321 Furniture Merchant Wholesalers
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42322 Home Furnishing Merchant Wholesalers
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4233 Lumber and Other Construction Materials Merchant Wholesalers
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42331 Lumber, Plywood, Millwork, and Wood Panel Merchant Wholesalers
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42332 Brick, Stone, and Related Construction Material Merchant Wholesalers
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42333 Roofing, Siding, and Insulation Material Merchant Wholesalers
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42339 Other Construction Material Merchant Wholesalers
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4234 Professional and Commercial Equipment and Supplies Merchant Wholesalers
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42341 Photographic Equipment and Supplies Merchant Wholesalers
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42342 Office Equipment Merchant Wholesalers
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42343 Computer and Computer Peripheral Equipment and Software Merchant Wholesalers
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42344 Other Commercial Equipment Merchant Wholesalers
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42345 Medical, Dental, and Hospital Equipment and Supplies Merchant Wholesalers
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42346 Ophthalmic Goods Merchant Wholesalers
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42349 Other Professional Equipment and Supplies Merchant Wholesalers
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4235 Metal and Mineral (except Petroleum) Merchant Wholesalers
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42351 Metal Service Centers and Other Metal Merchant Wholesalers
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42352 Coal and Other Mineral and Ore Merchant Wholesalers
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4236 Household Appliances and Electrical and Electronic Goods Merchant Wholesalers
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42361 Electrical Apparatus and Equipment, Wiring Supplies, and Related Equipment Merchant Wholesalers
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42362 Household Appliances, Electric Housewares, and Consumer Electronics Merchant Wholesalers
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42369 Other Electronic Parts and Equipment Merchant Wholesalers
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4237 Hardware, and Plumbing and Heating Equipment and Supplies Merchant Wholesalers
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42371 Hardware Merchant Wholesalers
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42372 Plumbing and Heating Equipment and Supplies (Hydronics) Merchant Wholesalers
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42373 Warm Air Heating and Air-Conditioning Equipment and Supplies Merchant Wholesalers
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42374 Refrigeration Equipment and Supplies Merchant Wholesalers
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4238 Machinery, Equipment, and Supplies Merchant Wholesalers
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42381 Construction and Mining (except Oil Well) Machinery and Equipment Merchant Wholesalers
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42382 Farm and Garden Machinery and Equipment Merchant Wholesalers
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42383 Industrial Machinery and Equipment Merchant Wholesalers
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42384 Industrial Supplies Merchant Wholesalers
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42385 Service Establishment Equipment and Supplies Merchant Wholesalers
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42386 Transportation Equipment and Supplies (except Motor Vehicle) Merchant Wholesalers
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4239 Miscellaneous Durable Goods Merchant Wholesalers
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42391 Sporting and Recreational Goods and Supplies Merchant Wholesalers
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42392 Toy and Hobby Goods and Supplies Merchant Wholesalers
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42393 Recyclable Material Merchant Wholesalers
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42394 Jewelry, Watch, Precious Stone, and Precious Metal Merchant Wholesalers
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42399 Other Miscellaneous Durable Goods Merchant Wholesalers
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4241 Paper and Paper Product Merchant Wholesalers
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42411 Printing and Writing Paper Merchant Wholesalers
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42412 Stationery and Office Supplies Merchant Wholesalers
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42413 Industrial and Personal Service Paper Merchant Wholesalers
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4242 Drugs and Druggists' Sundries Merchant Wholesalers
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42421 Drugs and Druggists' Sundries Merchant Wholesalers
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4243 Apparel, Piece Goods, and Notions Merchant Wholesalers
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42431 Piece Goods, Notions, and Other Dry Goods Merchant Wholesalers
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42432 Men's and Boys' Clothing and Furnishings Merchant Wholesalers
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42433 Women's, Children's, and Infants' Clothing and Accessories Merchant Wholesalers
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42434 Footwear Merchant Wholesalers
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4244 Grocery and Related Product Merchant Wholesalers
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42441 General Line Grocery Merchant Wholesalers
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42442 Packaged Frozen Food Merchant Wholesalers
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42443 Dairy Product (except Dried or Canned) Merchant Wholesalers
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42444 Poultry and Poultry Product Merchant Wholesalers
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42445 Confectionery Merchant Wholesalers
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42446 Fish and Seafood Merchant Wholesalers
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42447 Meat and Meat Product Merchant Wholesalers
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42448 Fresh Fruit and Vegetable Merchant Wholesalers
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42449 Other Grocery and Related Products Merchant Wholesalers
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4245 Farm Product Raw Material Merchant Wholesalers
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42451 Grain and Field Bean Merchant Wholesalers
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42452 Livestock Merchant Wholesalers
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42459 Other Farm Product Raw Material Merchant Wholesalers
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4246 Chemical and Allied Products Merchant Wholesalers
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42461 Plastics Materials and Basic Forms and Shapes Merchant Wholesalers
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42469 Other Chemical and Allied Products Merchant Wholesalers
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4247 Petroleum and Petroleum Products Merchant Wholesalers
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42471 Petroleum Bulk Stations and Terminals
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42472 Petroleum and Petroleum Products Merchant Wholesalers (except Bulk Stations and Terminals
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4248 Beer, Wine, and Distilled Alcoholic Beverage Merchant Wholesalers
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42481 Beer and Ale Merchant Wholesalers
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42482 Wine and Distilled Alcoholic Beverage Merchant Wholesalers
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4249 Miscellaneous Nondurable Goods Merchant Wholesalers
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42491 Farm Supplies Merchant Wholesalers
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42492 Book, Periodical, and Newspaper Merchant Wholesalers
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42493 Flower, Nursery Stock, and Florists' Supplies Merchant Wholesalers
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42494 Tobacco and Tobacco Product Merchant Wholesalers
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42495 Paint, Varnish, and Supplies Merchant Wholesalers
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42499 Other Miscellaneous Nondurable Goods Merchant Wholesalers
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4251 Wholesale Electronic Markets and Agents and Brokers
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42511 Business to Business Electronic Markets
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42512 Wholesale Trade Agents and Brokers
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NAICS Resources
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