800-233-7718 301-682-3390 GALLERY 2019 SPRING SYMPOSIUM BASIN GALLERY BOOSTER PUMP GALLERY PARTS GALLERY 2017 SPRING SYMPOSIUM FIRE PUMP GALLERY JOBSITE GALLERY STH ENGINEERING SYMPOSIUM 2015 SUBMERSIBLE SEWAGE PUMP GALLERY CONTROL PANEL GALLERY 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.

800-233-7718 301-682-3390 CAREERS STH is always looking for talented individuals seeking a career and not just a job. If you are interested in joining our team please call 301-682-3390 x 185, or click one of the links below for more information. STH uses E-Verify to match presented forms of identification to the records available to SSA and/or DHS. Positions: Inside Support Account Representative Technician Check out our current job openings: Sorry, iframes are not supported. 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.

800-233-7718 301-682-3390 WASTE WATER TREATMENT SYSTEM DESIGN GUIDE Please enter the information required in the fields below. Press the “Submit” button upon completion. *Note: ALL Fields are REQUIRED* 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.