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STH provides solutions through system application analysis, sales and service of engineered products.
STH specializes in the Application, Sale and Service of pre-engineered and packaged Fire Pumps, Water Booster Systems, Sump & Sewage Systems, On-Site Waste Water Systems, Rainwater Harvest Systems, Controllers & VFD’s for the Commercial and Municipal markets.
Our corporate office is located in Frederick, Maryland and we market our products and services in Maryland, Northern Virginia (Alexandria, Arlington, Tyson’s Corner, Fairfax), Washington DC and parts of Delaware and West Virginia.
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