Watts 500800 vs Grundfos 595916

These two hot water recirculation systems are my favorites. Here is a quick comparison between the two models.

Watts 500800

Grundfos 595916

Timer, Fittings, Check Valve 

Timer, Fittings, Check Valve 

-Summary-

The difference boils down to this: With the Grundfos model, you get an extra year of warranty for $40 more.

Watts 500800 vs Grundfos 595916