Good price on the Amazon site. Most fuel lines use 1/4 inch diameter line so the barbs should be for this. I've noticed these filters are made all over: India, Israel, etc. I generally use the larger capacity ones for my 27 Kohler. I change the fuel line every couple of seasons (from the tank to the filter and the section to the carb) and carry some spare line in the tool box. Make sure to install it with the arrow going with the flow.
I've also replaced the simple clamps with the small ss compression clamps.