TopTech 2 Valve Brass Manifold 2 1/2" Gauges. Easy to read 2.5" Limited Pointer Flutter Gauges with color coded refrigerant scales and color coded protective rubber gauge boots. Extended valve stems for more knuckle clearance and metal (not plastic) hand wheels. 5' high pressure color coded hoses with maximum working pressure 800 psi and a burst pressure of 4000 psi. Solid forged brass body with quick action valve assembly and user friendly 45° front hose holder.