The NEW REPLACEMENT brass floats are made in China. If your fuel contains ANY ethanol, EXPECT THE FLOATS TO LEAK WITHIN 3 MONTHS! The solder used is NOT compatible with ethanol.
Would highly suggest either new old stock brass or visit a swap meet and buy a used carburetor and hope the float is good. Either is better than buying the new Chinese made brass floats. Even the phenolic is better than the Chinese made brass ones.
Jon