Bimba F02, F03, and F04 series Flat-I® cylinders are double acting, single end rod cylinders that multiply the force output by supplying air to multiple pistons on extension.  They save space and eliminate the need for a higher pressure system.  Only one piston is powered on the return stroke, saving air volume and operating costs.Bore sizes:  2-1/2", 3", 4"304 stainless steel body prevents corrosionStandard oil impregnated bronze rod bushingStainless piston rodPrecision machined anodized aluminum headsMaximum Pressure:  100 PSI (air only)