ALYAN PUMP CO. - Packaged Pump Systems, Sump and Sewage Lift Stations, Condensate Units, Boiler Feed Units and Packaged Booster Systems

POWER-FLO PUMPS - Engineered Wastewater Products, Effluent and Sewage Pumps and Accessories
Including Grinders, Self Priming and End Suction Pumps


PRECISION BOILERS - Power Gas, Oil fired, Steam or Boiler Water and Electric Storage Type Water Heaters

HAMILTON ENGINEERING - Condensing Water Heaters and Rack Mounted Pre-Plumbed Systems  

HUBBELL WATER HEATERS - Storage type: Electric, Gas, Steam, Indirect.  Circulation, Explosion proof, 
Point-of-use, Deionized Water and Booster.

PRECISION BOILERS - Electric and Gas Hot Water and Steam Boilers, Boiler Room Equipment, MegaWatt High Voltage Electrode type, and Thermal Storage Systems (Megatherm)

HAMILTON ENGINEERING - Condensing Hot Water Boilers and Rack Mounted Pre-Plumbed Systems

VIESSMANN - Condensing Hot Water Boilers, up to 2,960mbh and Non-Condensing, up to 4387mbhI

COLUMBIA BOILER - Steel Boiler for High Pressure Hot Water or Process Steam

EASY HEAT / WARM TILES - Electric Radiant Floor Warming Systems & Pipe Tracing Systems

BANANZA, Air Handling Equipment - Air Turnover Units, Unit Heaters,  Duct Furnaces, and Infrared Heaters
CALEFFI - Hydronic Solutions, Hydro Separators thru 12",   Zone Valves, Thermostatic Mixing Valves, 
Radiant HydroMixer Controllers, Air Vents, and Manifold Mixing Stations
SEEWATER – "Oil Smart" Water Pump Switches, Alarms and Control Panels, Sensors and Controllers for "Elevator" Sump Pumps

AMTROL - TANKS (Expansion, Diaphragm, Hydro-Accumulator and Fire-X-Trol)

PALMER or WINTERS - Thermometers and Pressure Gauges

APRICUS - Evacuated Tube Solar Collectors, Heat Dissipator, (Thermal Solar Heating)  Complete Solar System, Packaged or Component Parts
WATER KING - Water Treatment Systems,  Filters Packages,  Water Softeners, Task Master III Controllers
AQUAMOTION - Wet Rotor High Efficiency, Patented Green Eco Cartridge that fits 95% of Competitors Units
Royster & Associates, LLC


       704-889-8892                                                         P.O. Box 976                                                                                     
FAX 704-889-8800                                        Waxhaw, N.C.  28173                      Info@RoysterAssociates.com