Quote Otto Skorzeny "Carbking, didn't you say that all the colors are made of the same stuff? I'm confused."
It is good to be confused, join the club!
Vendor 1 HAD both blue and red diaphragms which were the same material with a different colored dye. They discontinued the red dye in other diaphragm, but did not offer the YF diaphragm in other than black.
Vendor 2 has orange ones, but no blue.
Quote Skooter: "Will the ethanol-resistant diaphragm kits will be available for my Carter YF 964S on a 216? Maybe it's the same pump, I dunno."
The kits with the orange pumps will be available once I get my order. And yes, the diaphragm in the 964s is the one I ordered. Call me after the first of the year. They are SUPPOSED to be ethanol-resistant (NOT ethanol proof). In the FWIW category, neoprene (the black diaphragms) is recommended for use in ethanol by our benevolent government!
Jon