Lead-Free Plumbing Law


The Reduction of Lead in Drinking Water Act in the United States went into effect earlier this year, on January 4. The act imposes standards that were already enforced in several states. It defines “lead-free” as less than .25% lead on the wetted surface of pipes, pipe fittings, plumbing fittings, and fixtures used for potable water service. Previous federal laws set the limit at 8%. The new law limits solder and flux to .2%. The act considers any water used for human ingestion — including drinking, teeth brushing, food preparation, and dishwashing — as potable.

Only items used for potable water must to meet lead-free standards. Items frequently exempt from the regulation include toilets, bidets, fire hydrants, shower valves, washing machines, backflow preventers, irrigation equipment, and closed-loop hydronic heating systems used exclusively for non-potable service. Watch our video at the link below for more information. Relevant items that do not meet lead-free requirements should be marked on our website.

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GV90+ Boilers from Weil-McLain


Weil-McLain’s GV90+ series of gas boilers presents a unique option for hydronic heating systems: cast iron condensing boilers. Condensing boilers can handle condensed flue gases when return water temperatures are sufficiently low, resulting in less waste and higher efficiency ratings. Traditional cast iron boilers would be damaged by this acidic condensate, but the GV90+ includes a stainless steel heat exchanger to accommodate the condensate. The ability to condense flue gases allows all models in the series to boast DOE AFUE efficiency ratings of 91% or higher.

The boilers are also compatible with PVC venting and can be vented vertically or horizontally. They are ideal for high-temperature hydonic systems. They use two internal circulator pumps and an integrated control module to ensure that return fluid temperatures are low enough to allow flue gases to condense. LP conversion kits come standard with all GV90+ models.

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Grundfos UP Zone Valves


The Grundfos range of UP Zone Valves (UP-ZV) are designed to control your comfort with the latest in robust motor and gearing technology, to ensure long life and quiet operation. The UP-ZV range is designed for closed water heating and cooling applications. It is not intended for potable water applications.

The UP-ZV is compact with an economical design, and comes with an in-line removable by push button actuator, which makes installation and servicing easier. All components are corrosion resistant, and the high gear ratio transmission eliminates gear tooth stress, water hammer issues and valve ‘bouncing’ during closing. The forged brass body is 2-way flow with a high Cv rating and incorporates a durable stainless steel/EPDM valve stem assembly.

These zone valves come with or without end switches, and are available with sweat of threaded connection sizes of 1/2”, 3/4″ or 1”. Each zone valve includes the zone valve body, and a zone valve actuator. Standard features include a manual open/close lever and a removable bottom cap for in-pipe servicing. We also sell the actuator only with or without the end switch.

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SharkBite Removal Tools


SharkBite fittings offer an easy way to make basic repairs or permanent installations. They slide directly over PEX, copper, or OD-controlled CPVC without requiring any tools, making them ideal for small jobs and do-it-yourselfers. Removing SharkBite fittings is just as easy – if you have the proper tools. SupplyHouse.com carries compact SharkBite disconnect clips in a variety of sizes. Disconnect tongs make removal easier in hard-to-reach spots, and SharkShifter De-Mount clips, available in 1-1/4”, 1-1/2”, and 2”, make it possible to remove SharkBite 2XL fittings. Mill-Rose offers SharkBite Quick Release Pliers that work with multiple sizes of SharkBite fittings (3/8”, 1/2”, and 3/4”).

u712-1 sharkbite-tongs
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Winters Instruments


We have recently added a new range of products to the site by Winters Instruments. Winters Instruments specialize in manufacturing  gauges for pressure and temperature management. They have been around since 1953, and have grown in size and reputation through the years, to become a leading global manufacturer.

On our site you can find the most popular Winters Instruments products including Pressure Gauges, Thermometers and Valves, Tridactors, Thermowells, and Test Plugs. Winters products adhere strictly to ISO 9001:2008 guidelines.


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Benefits of Pipe Insulation


Insulating pipes provides many advantages in a variety of fluid distribution systems. See below for a list of common applications. SupplyHouse.com carries K-Flex Insul-Lock pipe insulation. Insul-Lock comes in 6-foot lengths for pipes with outside diameters ranging from 1/2″ to 4-1/8″. We offer Insul-Lock with 3/8″, 1/2″, and 1″ wall thicknesses. R-values for 1″-thick insulation can range above 7. Insul-Lock includes a pre-slit adhesive seam seal.

Insul-Lock is UV-resistant, but K-Flex recommends their part 374 protective coating for added protection when high sun exposure can be anticipated. Insul-Lock can be buried underground if proper precautions are taken. These include using sand or a conduit to guard against water absorption and using thicker insulation than would be need above ground in order to prevent compression of the insulation. Use POLYTAPE to join Insul-Lock sections together. K-Flex Elastometric Insulation Tape can be wrapped around pipes in tight areas and provides many of the same benefits as Insul-Lock.

  • Prevent freezing: pipe insulation reduces the risk of pipe bursts in domestic water and hydronic heating applications
  • Minimize heat loss: pipe insulation helps hot water pipe retain more heat, potentially saving energy and reducing hot water wait times
  • Minimize heat gain: pipe insulation blocks heat absorption, keeping drinking water as cold as possible and increasing efficiency in refrigeration and air conditioning systems
  • Prevent condensation: insulation can stop pipes from “sweating” during hot/humid times of the year


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