One brand new Watkins/Calderra/Hot Springs E5 SilentFlo 5000 circulation pump for spa/hot tub systems. Oh, and check out our other listings for more rock bottom pricing on other Watkins/Calderra/Jandy/Zodiac products! Weve got your pool and spa needs covered at J and D! Track Page Views With. Auctiva’s FREE Counter. The item “Watkins Hot Spring Spa Silent Flo 5000 E5 Circulation Pump E-5 # 74427 free ship” is in sale since Wednesday, January 10, 2018. This item is in the category “Home & Garden\Yard, Garden & Outdoor Living\Pools & Spas\Spas & Hot Tubs”. The seller is “jandd23″ and is located in San Marcos, California. This item can be shipped to United States.