Thinkware CPL Filter

Does not fit ARC900 as initially described.

Does not fit ARC900 as stated when purchase was made. Since purchase, description updated to correctly indicate it will not function with ARC900. Return shipment of filter is in progress. Upon inquiring when obtaining RMA, I was informed there is no viable CPL at the moment. Soon after that conversation, the description was corrected to show incompatibility with ARC900.