| Advanced Drainage Corrugated Pipe | www.ads-pipe.com |
| Cambridge Lee Copper | www.cambridgelee.com |
| Charlotte Plastic & Cast Iron | www.charlottepipe.com |
| Cresline Sewer & Drain Pipe | www.creslinepipe.com |
| Elkhart Copper Fittings | www.elkhartproducts.com |
| Endot Poly Pipe | www.endot.com |
| Matco-Norca Steel Nipples & Fittings | www.matco-norca.com |
| Merit Brass Nipples & Fittings | www.meritbrass.com |
| Silverline Plastic Pipe | www.slpipe.com |
| Spears Plastic Pipe | www.spearsmfg.com |
| United Pipe Steel Pipe | www.united-pipe.com |
| Viega Pex Pipe & Fittings | www.viega.net |
| Wardflex SS Fleixible Gas Pipe & Fittings | www.wardflex.com |