mapping querystring to action method contains special character

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MVC

WebAPI

How we can register a route in WEB api having query string is product-Id:347DCYA3-FE25DW8350 i taken this as string in the parameter of the action method. i cannot map to the below action method .
Can you help me
this is the route configuration

config.Routes.MapHttpRoute("product", "product/{productId}", new { controller = "product", action = "get" });

route

routes.MapRoute("Default", "{controller}/{productId}", new { controller = "product",

action = "get", id = UrlParameter.Optional });

in controller [httpget]

public void get (string productId) { }