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 has state-of-the-art design, Recirculating Flue Gas Technology which reduces emissions. More about Trio and the other fine PurePro products can be found on their website: http://www.trioboiler.com