Rinnai / Grundfos GTK03U — Circ-Logic™ External Pump Kit (115 V) w/ Union Connections Size_3/4" Inductive rating: 40 A at

Inductive rating: 40 A at 120–480 VAC

Residential and light-commercial gas equipment installations

Built-in stabilizers

PRG-Series grinders can be used as a replacement pump in 2" discharge systems using LE40 and LE50-Series solids handling pumps

Are trippers included

Rinnai / Grundfos GTK03U — Circ-Logic™ External Pump Kit (115 V) w/ Union Connections Size_3/4" Inductive rating: 40 A atRinnai Grundfos GTK03U Circ Logic External Recirculation Pump Kit Brand: Rinnai Grundfos SKU: GTK03U Product Overview The Rinnai Grundfos GTK03U is an external recirculation pump kit for compatible Rinnai tankless water heaters that support Circ Logic control. It adds a Grundfos circulator with an internal check valve to an approved recirculation layout, allowing the heater's Circ Logic settings to control scheduled or demand based circulation