HHO Generator System is a gas mileage and power enhancer system based on "Hydrogen-on-Demand" technology from HydroxyGarage.comHHO Generator Kit complete with high pressure flexible tube, Bubbler, Pressure Gauge, Flow Meter, KOH and clamps.: Uses 4 pairs of tubes of Dia" 1" and 3 4" and 8" active length, height 12".Bubbler : Made of transparent polycarbonate materials.Pressure Gauge : Measures upto 6 Kg Cm2.FlowMeter : Measures upto15 LPM.Tube : 3 mtr long flexible tube of to withstand 72 Kg.Catalyst : Pottassium Hydrox Pallets 500 GmsTubes : Seamless SS 304: Dia 110mm Height: 11" made of Acrylic Polycarbonatewe are directly buyer,if you have,please send details to us.Wishing you successful business with us.thank you!!