Review on Atima Extended Run Fuel Gas Cap: Perfect Fit for Yamaha EF2200is EF1000is and A-ipower sua2300iV AT-EFC2000 by Jerry Delozier

This cover will also fit the Powerhorse 2000 Inverter Generator sold by Northern Tool and Equipment. The threads on the inside of this cap are VERY sharp so I sanded them down with some sandpaper to avoid cutting the plastic threads on the generator gas tank. When using this with a Powerhorse generator it is important that the extended run time is greater than that of the generator. The generator does not have a fuel pump. Feeds itself. Therefore, the extended stroke must be above the generator to create a siphon. Works perfectly.