Rinnai / Grundfos GTK03U — Circ-Logic™ External Pump Kit (115 V) w/ Union Connections
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Product details
| Management number | 203840102 | Release Date | 2025/10/20 | List Price | $167.28 | Model Number | 203840102 | ||
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Rinnai / Grundfos GTK03U Pump Kit — Smart Recirculation with Circ-Logic™
The GTK03U Pump Kit enables hot water recirculation using Rinnai’s Circ-Logic™ technology on tankless water heaters lacking built-in pumps. It includes a Grundfos 15-55 pump with an internal check valve, prewired conduit, and flange kit, allowing you to enjoy “instant hot water” without needing a dedicated return line.
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Recirculating Pumps
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