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Circulator Pump — 4" VFD Tango (Grundfos MAGNA3 Replacement)
Variable-frequency-drive circulation in a 4-inch connection size, positioned as a Grundfos MAGNA3 replacement.
Shipping$1,393Free
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Variable-speed VFD (Tango) flange circulator pump for 208-230V systems, designed for high-flow circulation up to 120°F.
| Connection | 4" |
|---|---|
| Max flow | 277 GPM |
| Max head | 40 ft |
| Power | 31.11–1523W |
| Max pressure | 87 psi |
| Weight (net/gross) | 137 lb / 158 lb |
| Included hardware | NPT flanges, stainless hardware, pre-mold body insulation |
| Rated max liquid temperature | 120°F (not the family's advertised 50–180°F ceiling — this specific model tops out lower) |
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Need an installer?We made it easy for you.
Listed installers are independent contractors, not MBTEK employees. They're skilled professionals familiar with our products and capable of efficient installation.
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Our team can help with product questions, sizing guidance, and next steps.