I have no relationship to the seller, but it seemed like a good deal for a used 30amp GFI breaker. Obvious your panel has to accept Square D breakers (which mine does).
Any additional benefits to using the Spa Panel versus this breaker and running it straight to an outlet?
Just make sure your box accepts the QOB style bolt on Square D breaker. I know that my SD does not accept that style of breaker.
__________________ Brewing: Kona Fire Rock Pale Ale Clone Drinking: KingBrian's Caramel American Amber Ale On Deck: Classic American Pilsner, Raspberry Brown Ale, Dunkel, Schwartzbier 2013 Gallons Brewed: 30 Gallons Brewed '11-'12: 170