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Only compatible with RL Series non-condensing units:


Housing Material Stainless Steel with Check Valve

Flow Range 20 GPM Head Range 17 Ft (5 m)

Max Liquid Temperature 150° F (65° C)

Maximum System Pressure 145 PSI

Input Voltage 115 V

Frequency 60 Hz

Max Amperage 0.75 A

Connection Size 3/4” Unions


Pipe Length Equivalent pipe length using Grundfos GTK03 pump at 120°F (49° C) = Up to 200 Ft (61 m) (3/4” piping).

Equivalent pipe length includes supply piping, return piping and fittings. The installer/contractor/engineer must calculate the total equivalent pipe length of the piping system.

Warranty Manufacturer’s Warranty Applies

Requirements Grundfos GTK03 Kit must be used with Rinnai Tankless Water Heaters utilizing Rinnai Circ-Logic™.


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