800-233-7718 301-682-3390 ENGINEERING STH can assist and provide detailed commercial and municipal specifications, drawings, application engineering, project budgets and training to owners and engineers for your specific pre engineered pumping and controller applications. STH is committed to and supports our local engineering community through our participation in both the Washington D.C. and Baltimore ASPE Associations and by assisting our engineers with their product selection and specifications needs. To better assist our engineers we have Engineering Design Guides for our fire, booster, sump & sewage and related controller products. Simply complete and submit the design guide information form and one of our sales engineers will contact you and provide the information you need to complete your product selection and specifications. COMMERCIAL Fire Domestic Booster Sump & Sewage MUNICIPAL Waste Water Treatment View Our Photo Gallery Contact Us QUICK LINKS Products Manufacturers Engineering Parts Contact About NEWS MTH Pumps Introduces the T31 Pump in 3-Phase Open Drip Proof April 13, 2021 One Small Box Saves the Day December 2, 2020 Grundfos Hydro MPC HVAC System Solves Contractor and Engineer Challenges and is named 2020 Product of the Year Award Winner by Engineered Systems. October 9, 2020 CONTACT US 97 Monocacy Blvd Suite D Frederick, MD 21701 P: (301) 682-3390 T: (800) 233-7718 F: (301) 682-3391 Copyright ©2021 STH Inc. All Rights Reserved. Privacy Policy. Designed by ArachnidWorks, Inc.