Is the DualSun SPRING panel compatible with Kilfrost GEO antifreeze fluid?

YES.

SPRING heat exchanger materials and DualSun DualQuickfit inter-panel links are all compatible with Kilfrost GEO antifreeze fluid.

What material is used for the Spring panel heat exchanger?

What material are the inter-panel links of the pressurized Spring panel (P) made of?

What material are the inter-panel links of the Spring panel for pool heating (SP) made of?