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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™.


Blog posts

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    September 27, 2023

    Winter Preparedness with Snow Melt Mats

    As winters become more unpredictable, reliable and efficient snow removal solutions are critical. Snow melting systems offer a modern, safe, and environmentally friendly alternative to traditional snow removal methods.
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  • Why Snow Melt Mats are a Must-Have
    September 25, 2023

    Why Snow Melt Mats are a Must-Have

     Snow Ice Melting Mats is undoubtedly a wise investment. With minimal running costs, maximum safety measures, and remarkable durability, they offer an all-in-one package for an effortless winter experience.
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  • Get Frost-Proof!
    September 23, 2023

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     Upgrading to a frost-free faucet alleviates the worry of winter-induced water damage and adds extra protection to your home’s water supply. It’s an investment that pays for itself in peace of mind and financial savings.
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