Try looking at www.foamfloats.com I have the 16" on GWS tigermoth, 19" on the GWS beaver (15.5oz all RTF) 30" on Kavan Partenavia and working on putting a GWS Zero on a single float. Prices are good and service has been GREAT, plus, if you mount these on a plane that has not been done yet you get the floats for free !!! Check the web site for details and tell Will I sent ya.

Leonard Perry