FPS Tri-Seal Series Submersible Well Pump

Technical Product Description:

The Franklin Electric FPS Tri-Seal Series Submersible Well Pump is a 4-inch residential-duty submersible well pump engineered for dependable water delivery in demanding well conditions. Franklin Electric states that the standard FPS Tri-Seal pump features the TRI-SEAL floating stage system, designed to improve efficiency and protect against wear when pumping abrasives such as sand.  

The TRI-SEAL Series is part of Franklin Electric’s TRI-SEAL 4-inch submersible well pump family within its residential-duty pump lineup. Franklin’s published model pages show that the series is offered in multiple configurations, including 2-wire thermoplastic, 3-wire thermoplastic, 2-wire stainless steel, and 3-wire stainless steel versions, depending on the exact model selected.  

Published Franklin model information also shows examples such as 10 GPM, 15 GPM, and 20 GPM configurations in the FPS Tri-Seal family, confirming that final flow rating, horsepower, and material construction vary by model number. Seller listings for specific models also describe the pump as part of the FPS 4400 product family, though the core Tri-Seal product description from Franklin is the primary source for the series-level positioning.  

With its 4-inch form factor, abrasion-resistant stage design, and multiple material and wiring configurations, the FPS Tri-Seal Series is a practical choice for residential and light-duty water well applications where sand handling, durability, and efficient deep-well performance are important. This application framing is an inference based on Franklin’s residential-duty category and the stated sand-wear protection benefits.

Key Technical Features:

• 4-inch submersible well pump for residential-duty applications.  
• TRI-SEAL floating stage system for improved efficiency.  
• Designed to protect against wear when pumping abrasives such as sand.  
• Available in 2-wire and 3-wire configurations.  
• Available in thermoplastic and stainless steel constructions, depending on model. 
• Published model examples include 10 GPM, 15 GPM, and 20 GPM configurations.