Who is TRIO?

As the largest plumbing and heating distributor in the Northeast, F.W. Webb Company works with contractors to design, develop and manufacture a complete line of more than 1000 products sold only to contractors under the proprietary brand: PurePro. These products provide a unique value not found elsewhere in the industry. TRIO is a PurePro heating system assembled in Pennsylvania and distributed exclusively through F.W. Webb.

TRIO is unlike any other heating system on the market and was designed to fill the need for both a residential and commercial cast iron boiler that stands above the rest in reliability and efficiency. TRIO Cast Iron Boilers are a result of European design, American engineering and more than 50 years of manufacturing expertise.

Superior construction, ease of installation and design features that make maintenance and repair fast and easy are all reasons that thousands of contractors and homeowners have come to rely on TRIO for heating. TRIO, like all PurePro products, offers an unmatched combination of quality, value and reliability – 100% certified and backed by F.W. Webb.

Represented Since


Boyertown, PA

DDS Territory


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Featured Product -

PurePro Trio P4ES

The TRIO boiler by PurePro combines high efficiencies, convenient serviceability, and low mass European 3-Pass Technology. It is constructed of GG20-rated cast iron for Thermal Shock Protection and durability. The TRIO boiler’s state-of-the-art design includes recirculating flue gas technology for reduced emissions. The TRIO boiler comes standard with a Hydro level 3250 Hydrostat, which combines Temperature Limit Control, LWCO and Boiler Reset in one easy-to-use control. Output 160K BTU. Less burner. Riello, Becket and Carlin, sold separately. See specification sheet for models. ENERGY STAR rated. AFUE rating 87.0 with Energy Star Kit 705814.

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