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Circulator Pump — 3" Gem (Grundfos MAGNA3 Replacement)
Part of the "Gem" family, marketed as a direct Grundfos MAGNA3 80-120F replacement (model 98126860).
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High-capacity flange circulator pump for 208-230V systems, built for efficient flow in larger hydronic applications (80°F to 120°F range).
| Replaces | Grundfos MAGNA3 80-120F (model 98126860) |
|---|---|
| Connection | 3" |
| Power | 40–650W, 2 HP motor, 208–230V |
| Operating temperature range | 80°F–120°F |
| Capacity | 150–250kW |
| Flow rate | Not published |
| Head | Not published |
| Max pressure | Not published |
| Weight (net/gross) | Not published |
| Included hardware | NPT flanges, stainless hardware, pre-mold body insulation |
| Sizing guide (single pump) | Up to 4x APOLLO 5-6 Ton / UNI 150-300 / Pellet 150-300 |
| Sizing guide (2 pumps in series) | Up to 500kW / 8x APOLLO 5-6 Ton |
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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.
Any questions?Reach out to us.
Our team can help with product questions, sizing guidance, and next steps.