The SilentFlo E5 Circulation Pump (74427) is an upgraded, energy-efficient pump compatible with Hot Spring, Tiger River, and Limelight spas manufactured by Watkins from 1986–2015. This model is designed as a replacement for pumps compatible with the Watkins SilentFlo 5000 and SilentFlo 5002, offering improved performance, higher water flow, and quieter operation.

Operating at just 35 watts, the E5 circulates approximately 6,000 gallons of water every 24 hours, maintaining proper filtration, heater flow, and system circulation around the clock. Its compact, flexible design allows mounting on its side or vertically to match your spa’s existing plumbing. The inlet and outlet heights match previous compatible models, ensuring a smooth installation process.

This pump features next-generation magnetic-drive technology that slowly ramps up at startup for proper priming. The impeller is easily accessible by removing the top ring, allowing for quick cleaning and simple routine maintenance. Whether replacing a failing pump or upgrading for better efficiency, the SilentFlo E5 is a dependable solution for keeping spa water clean, heated, and continuously circulating.

What’s Included:

• This is for a single item

• SilentFlo E5 Circulation Pump (74427)

• Power cord attached

Technical Specifications:

• Voltage: 115V

• Frequency: 60Hz

• Power: 35 watts

• Flow Rate: ~6,000 gallons per 24 hours

• Inlet Height: 1-11/16"

• Outlet Height: 4-1/4"

• Mounting: Horizontal or vertical