Are dechlorinators from the fish aisle safe for turtles?

 
Are dechlorinators from the fish aisle safe for turtles?
I bought this from PetCo.

http://www.microbelift.com/products/new-products/home-aquarium/super-dechlorinator/

It removes chlorine and chloramine...which is what I want. Would it be safe for my red-eared slider or should I return it?