USA MADE Dual Link or Extended Run kit that allows to tie together two Honda generators or connect one or both generators to an external tank for longer run time, original BERGS System II, not some chinese knock off, machined from aircraft grade aluminum, comes with two gas caps and fuel hoses, would cost about 300 new, works on Honda models EU1000i, EU2000i, EU2200i, Generac models IX800, IX1600, IX2000, ETQ models IN800i, IN1800i, all Power models like APG3101, APG3102, and some other brands, $160 OBO or trade