| Instrumentation |
| Hex Valve | http://www.hexvalve.com |
| Refrigeration |
| CPS Products, Inc. | http://www.cpsproducts.com |
| Refrigeration |
| Uniweld Products, Inc. | http://www.uniweld.com |
| Plumbing |
| Azel Technologies Inc. | http://www.azeltec.com/ |
| Plumbing |
| ComfortPro Systems LLC | http://www.comfortprosystems.com |
| Plumbing |
| Northeast Medical Consulting Inc. | http://www.nemedical.net |
| Plumbing |
| Precision Hydronic Products, JL Industries, Inc. | http://www.phpinc.com |
| Plumbing |
| Roth Industries, Inc. | http://www.roth-usa.com |
| Plumbing |
| Stevens Pump Co. | http://www.stevenspump.com |
| Plumbing |
| Viega | http://www.viega.com |
| Plumbing |
| Watts Regulator Co. | http://www.watts.com |
| Plumbing |
| Zurn Plumbing Products Group | http://www.zurn.com |
| Prefabricated | Valves and Fittings | Azel Technologies Inc. | http://www.azeltec.com/ |
| Prefabricated |
| Azel Technologies Inc. | http://www.azeltec.com/ |
| Prefabricated | Valves and Fittings | Caleffi North America, Inc. | http://www.caleffi.us/ |
| Prefabricated |
| Caleffi North America, Inc. | http://www.caleffi.us/ |
| Prefabricated | Valves and Fittings | ComfortPro Systems LLC | http://www.comfortprosystems.com |
| Prefabricated |
| ComfortPro Systems LLC | http://www.comfortprosystems.com |
| Prefabricated | Valves and Fittings | Danfoss Inc. | http://www.danfoss.com// |
| Prefabricated |
| Danfoss Inc. | http://www.danfoss.com// |
| Prefabricated |
| Freedom Plastics, Inc. | http://www.freedomplastics.com |
| Prefabricated | Valves and Fittings | Hydronic Alternatives | http://www.hydronicalternatives.com |
| Prefabricated | Valves and Fittings | Parker Fluid Control Division | http://www.parker.com/fcd |
| Prefabricated |
| PEP Plastic Engineered Products | http://www.pep-plastic.com |
| Prefabricated | Valves and Fittings | Precision Hydronic Products, JL Industries, Inc. | http://www.phpinc.com |
| Prefabricated |
| Precision Hydronic Products, JL Industries, Inc. | http://www.phpinc.com |
| Prefabricated | Valves and Fittings | Roth Industries, Inc. | http://www.roth-usa.com |
| Prefabricated |
| Roth Industries, Inc. | http://www.roth-usa.com |
| Prefabricated | Valves and Fittings | Slant / Fin Corp. | http://www.slantfin.com |
| Prefabricated |
| Slant / Fin Corp. | http://www.slantfin.com |
| Prefabricated |
| Spears Mfg. Co. | http://www.spearsmfg.com |
| Prefabricated | Valves and Fittings | Viega | http://www.viega.com |
| Prefabricated |
| Viega | http://www.viega.com |
| Prefabricated | Valves and Fittings | Watts Regulator Co. | http://www.watts.com |
| Prefabricated |
| Watts Regulator Co. | http://www.watts.com |