This 2-Gauge Panel Kit is Vertical Mount Model that has Two 1,000 PSI Brake Bias Gauges that use 1/8 NPT Male Fittings. The gauges are liquid filled for protection against vibration at the roughest race tracks. Gauge panel will allow user to get to a reference point with brake pressure ratios. Gauges are also equipped with bleeders to evacuate the system of air pockets. Plumbing is not included and is sold separately. Panel Measurements are 2-3/4" Wide X 4-1/2" High. Sold as one Kit.