Waterway Executive 4.0 HP [12.0A] [1S] Pump (3711621-13) pushpullvalves Matching the correct sensor size

Matching the correct sensor size and lead length helps preserve the intended installation and sensing position

A heater assembly should fit the system as confidently as it heats it

The Raypak drain valve is designed for compatible 53

2 inch by 4 inch format with 230 volt operation

This type of replacement is especially useful when the surrounding filter hardware remains serviceable and the issue is centered on renewing the filter media

Waterway Executive 4.0 HP [12.0A] [1S] Pump (3711621-13) pushpullvalves Matching the correct sensor sizeThe Waterway 3711621 13 Executive pump is designed for compatible applications and features a 4. 0 HP motor rated at 12. 0 amps in a single speed configuration. A pump like this is useful because it provides a complete replacement solution when the original unit needs full renewal rather than a part by part rebuild. Higher horsepower Executive pumps are often selected for demanding spa and water movement applications where dependable output matters.