{"product_id":"plastics-executive-56-frame-4-hp-spa-pump-230v-for-3721621-1d-hot-tubs","title":"Plastics Executive 56 Frame 4 HP Spa Pump 230V for 3721621-1D Hot Tubs","description":"\u003ch2\u003eProduct Overview\u003c\/h2\u003e\u003cp\u003eThis aftermarket replacement spa pump is a Plastics Executive 56 frame 4 HP unit rated for 230V and intended for hot tub applications, cross-referencing part numbers 3721621-1D and 37216211D. A spa pump moves water through the hot tub plumbing system to support circulation and jet operation. Buyers should confirm the existing pump details, frame size, voltage, and part numbers before ordering.\u003c\/p\u003e\u003ch3\u003eKey Features \u0026amp; Performance\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eSpa pumps circulate water through hot tub plumbing to support normal water flow and jet operation.\u003c\/li\u003e\n\u003cli\u003eThe unit is built around a Plastics Executive 56 frame configuration.\u003c\/li\u003e\n\u003cli\u003eRated at 4 HP for the listed hot tub pump application.\u003c\/li\u003e\n\u003cli\u003eDesigned for 230V operation as stated in the product title.\u003c\/li\u003e\n\u003cli\u003eCross-references part numbers 3721621-1D and 37216211D for comparison with the existing pump.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment \u0026amp; Compatibility\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003efor Plastics Executive 56 frame spa pump applications\u003c\/li\u003e\n\u003cli\u003efor 230V hot tub applications\u003c\/li\u003e\n\u003cli\u003efor systems referencing part numbers 3721621-1D and 37216211D\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eCommon Uses\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eReplacing a worn, leaking, or malfunctioning spa pump in a hot tub system.\u003c\/li\u003e\n\u003cli\u003eRoutine maintenance and servicing of hot tub water circulation equipment.\u003c\/li\u003e\n\u003cli\u003eRestoring normal water circulation and jet operation after the original pump has failed.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Spa Pump\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFrame:\u003c\/strong\u003e Plastics Executive 56 Frame\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower Rating:\u003c\/strong\u003e 4 HP\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVoltage:\u003c\/strong\u003e 230V\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number(s):\u003c\/strong\u003e 3721621-1D, 37216211D\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGeneral Application:\u003c\/strong\u003e Hot Tubs\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eQ:\u003c\/strong\u003e What does a spa pump do? \u003cstrong\u003eA:\u003c\/strong\u003e It moves water through the hot tub plumbing system to support circulation and jet operation.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ:\u003c\/strong\u003e How should fitment be verified? \u003cstrong\u003eA:\u003c\/strong\u003e Compare the complete existing part number, frame size, voltage, and pump specifications with the information provided before ordering.\u003c\/p\u003e\u003cp\u003e\u003cem\u003eThis is an aftermarket replacement part and is not represented as genuine or original equipment. Product appearance and specifications may vary slightly by batch. Compatibility may vary by serial number, model year, or existing part number. Verify fitment before purchase.\u003c\/em\u003e\u003c\/p\u003e","brand":"DURAFORCE","offers":[{"title":"Default Title","offer_id":67947086840081,"sku":"ZZ3V00931","price":393.89,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0250\/2446\/2929\/files\/s-l1600_8ec76c6a-6552-4860-8a50-2d0c8cfe3b70.jpg?v=1793697993","url":"https:\/\/www.duraforce.com\/products\/plastics-executive-56-frame-4-hp-spa-pump-230v-for-3721621-1d-hot-tubs","provider":"DURAFORCE","version":"1.0","type":"link"}