Hot Water Circulating Pumps

These are required for forced circulation of liquids within the solar loop of a pressurised split solar hot water system.  The casing material is matched to its use, bronze being preferred for direct heating of the water where corrosion resistance is important.

Pump Cross Reference Guide

Recommended for Model Grunfos Wilo
Single Storey Homes GPD20-5SB UPS-20-50B ST20/4
Two Storey Homes GPD25-8SB UPS-25-8B ST25/7

Note: This cross-reference is a guide only. Each motor replacement option must be evaluated based on the installation requirements.


Bronze Solar Water Pump  GPD20-5SB


gpd25