| Grooved |
| Anvil International Corp., Inc. | http://www.anvilintl.com |
| Grooved |
| Grinnell Corp. | http://www.grinnell.com |
| Grooved |
| Harvel Plastics, Inc. | http://www.harvel.com |
| Grooved |
| Shurjoint Piping products | http://www.shurjoint.com |
| Grooved |
| The Reliable Automatic Sprinkler Co., Inc. | http://www.reliablesprinkler.com |
| Grooved |
| Tyco Fire & building Products | http://www.grinnell.com |
| Hose |
| Anderson Metal Corp., Inc. | http://www.andersonmetals.com |
| Hose |
| B & K Industries, Inc. | http://www.muellerindustries.com |
| Hose |
| Durst Corp. | http://www.durstcorp.com |
| Hose |
| Flood Master Inc. | http://www.floodmaster.com |
| Hose |
| Hodes Co. | http://www.hodesco.com |
| Hose |
| Holyoke Fittings, Inc. | http://www.holyokefittings.com |
| Hose |
| JB Products | http://www.federalprocess.com |
| Hose |
| NEOPERL, Inc. | http://www.neoperl.com |
| Hose |
| Parker Hannifin Corp. | http://www.parker.com/cig |
| Hose |
| Wolverine Brass, Inc. | http://www.wolverinebrass.com |
| Pipe | Flexible | American Valve Inc. | http://www.americanvalve.com |
| Pipe | Flexible | Anvil International Corp., Inc. | http://www.anvilintl.com
|
| Pipe | Flexible | B & K Industries, Inc. | http://www.muellerindustries.com
|
| Pipe | Flexible | Barnett | http://www.e-barnett.corn |
| Pipe | Flexible | Campbell Mfg. Inc. | http://www.campbellmfg.com |
| Pipe | Flexible | Durst Corp. | http://www.durstcorp.com |
| Pipe | Flexible | Flexhead Industries, Inc. | http://www.flexhead.com |
| Pipe | Flexible | Flood Master Inc. | http://www.floodmaster.com |
| Pipe | Flexible | Genova Products, Inc. | http://www.genovaproducts.com |
| Pipe | Flexible | Harvel Plastics, Inc. | http://www.harvel.com |
| Pipe | Flexible | Hodes Co. | http://www.hodesco.com |
| Pipe | Flexible | PEP Plastic Engineered Products | http://www.pep-plastic.com |
| Pipe | Flexible | Roth Industries, Inc. | http://www.roth-usa.com |
| Pipe | Flexible | T-Drill Industries, Inc. | http://www.t-drill.com |
| Pipe | Flexible | Tru-Flex Metal Hose Corp. | http://www.tru-flex.com |
| Pipe | Flexible | Twin City Hose, Inc. | http://www.twincityhose.com |
| Pipe | Flexible | Ward Manufacturing, Inc. | http://www.wardmfg.com |
| Pipe | Flexible | Watts Radiant | http://www.wattsradiant.com |
| Pipe | Flexible | Wolverine Brass, Inc. | http://www.wolverinebrass.com |
| Pipe | Flexible | Zurn Plumbing Products Group | http://www.zurn.com |
| Pipe | Quick Connect | Cash Acme | http://www.cashacme.com |
| Pipe | Quick Connect | Dryerbox, In-O-Vate Technologies | http://www.dryerbox.com |
| Pipe | Quick Connect | Durst Corp. | http://www.durstcorp.com |
| Pipe | Quick Connect | Flood Master Inc. | http://www.floodmaster.com |
| Pipe | Quick Connect | Hodes Co. | http://www.hodesco.com |
| Pipe | Quick Connect | Holyoke Fittings, Inc. | http://www.holyokefittings.com |
| Pipe | Quick Connect | Predco | http://www.plumb-bob.com |
| Pipe | Quick Connect | Wolverine Brass, Inc. | http://www.wolverinebrass.com |
| Pipe |
| AB&I Foundry | http://www.abifoundry.com |
| Pipe |
| Anderson Metal Corp., Inc. | http://www.andersonmetals.com |
| Pipe |
| Anvil International Corp., Inc. | http://www.anvilintl.com |
| Pipe |
| Charlotte Pipe and Foundary Co. | http://www.charlottepipe.com/ |
| Pipe |
| Dryerbox, In-O-Vate Technologies | http://www.dryerbox.com |
| Pipe |
| Durst Corp. | http://www.durstcorp.com |
| Pipe |
| Edmund A. Gray Co., Inc. | http://www.eagray.com |
| Pipe |
| Flood Master Inc. | http://www.floodmaster.com |
| Pipe |
| FlowGuard Gold Pipe & Fittings | http://www.flowguardgold.com/ |
| Pipe |
| Freedom Plastics, Inc. | http://www.freedomplastics.com |
| Pipe |
| Grinnell Corp. | http://www.grinnell.com |
| Pipe |
| Hodes Co. | http://www.hodesco.com |
| Pipe |
| Holyoke Fittings, Inc. | http://www.holyokefittings.com |
| Pipe |
| Matco-Norca, Inc. | http://www.matco-norca.com |
| Pipe |
| Merit Brass Co. | http://www.meritbrass.com |
| Pipe |
| NAPAC, Inc. | http://www.napacinc.com |
| Pipe |
| PEP Plastic Engineered Products | http://www.pep-plastic.com |
| Pipe |
| Predco | http://www.plumb-bob.com |
| Pipe |
| Smith-Cooper International | http://www.smithcooper.com |
| Pipe |
| Trenton Pipe Nipple Co. | http://www.trentonpipe.com |
| Pipe |
| Tyco Fire & building Products | http://www.grinnell.com |
| Pipe |
| Zurn Plumbing Products Group | http://www.zurn.com |
| Pipe | Detachable | Anvil International Corp., Inc. | http://www.anvilintl.com |
| Pipe | Detachable | Clampco Products Inc. | http://www.clampco.com |
| Pipe | Detachable | Tuf-Lok Intl. | http://www.tuflok.com |
| Pipe | Mechanical | Anvil International Corp., Inc. | http://www.anvilintl.com |
| Pipe | Mechanical | Clampco Products Inc. | http://www.clampco.com |
| Pipe | Mechanical | Tuf-Lok Intl. | http://www.tuflok.com |
| Pipe | Mechanical | Victaulic | http://www.victaulic.com/ |
| Pipe |
| Anvil International Corp., Inc. | http://www.anvilintl.com |
| Pipe |
| Carlon Meter Co., Inc. | http://www.carlonmeter.com |
| Pipe |
| Clampco Products Inc. | http://www.clampco.com |
| Pipe |
| Flex-Weld, Inc. | http://www.flex-weld.com |
| Pipe |
| Fluid Line Products, Inc. | http://www.fluidline.com |
| Pipe |
| H-P Products, Inc. | http://www.metflo.com |
| Pipe |
| Nicholson Steam Trap | http://www.nicholsonsteamtrap.com |
| Pipe |
| Tuf-Lok Intl. | http://www.tuflok.com |
| Pipe |
| Victaulic | http://www.victaulic.com/ |
| Power Transmission |
| Amarillo Gear Co. | http://www.amarillogear.com |
| Power Transmission |
| Browning/Emerson Power Transmission | http://www.emerson-ept.com |
| Power Transmission |
| KTR Corp. | http://www.ktrcorp.com |
| Tubing |
| Anderson Metal Corp., Inc. | http://www.andersonmetals.com |
| Tubing |
| Dryerbox, In-O-Vate Technologies | http://www.dryerbox.com |
| Tubing |
| Flood Master Inc. | http://www.floodmaster.com |
| Tubing |
| Holyoke Fittings, Inc. | http://www.holyokefittings.com |
| Tubing |
| Roth Industries, Inc. | http://www.roth-usa.com |
| Tubing |
| Viega | http://www.viega.com |
| Tubing |
| Wolverine Brass, Inc. | http://www.wolverinebrass.com |
| Tubing |
| Zurn Plumbing Products Group | http://www.zurn.com |
|
| Dallas Specialty & Mfg. Co. | http://www.dalspc.com |
|
| 3-D Service Ltd. | http://www.3-dservice.com |
|
| Trico / TCWind | http://www.ips.us/ |