RIO COLDWATER ‘GENERAL PURPOSE SALTWATER’ FLOATING Fly Lines with WELDED LOOPS INSTALLED on both ends. All-purpose line for early season bonefish, striped bass or winter redfish, you name it. Quick loading head & bullet taper with a supple braided core that ensures that the line stays limp in the coolest conditions, and a hard slick coating for max performance. Best performance in 50-80 degree temps. 100-ft line. Grey running line with Lt-Coral head. WF6F thru WF10F