Uniweld Q4N85SMA 4-V ALUMINUM MANIFOLD, BRASS NPF�, HDC5MBA HOSES Anodized aircraft aluminum block body with 4 ports for charging, evacuating and testing a system without changing or removing hoses. 3/8” SAE port increases vacuum capacity and saves time Optical sight glass for monitoring refrigerant Durable, brazed brass T-handles provide smooth, precise adjustments NPF No Pointer Flutter™, 80mm (3-1/8”) gauges with (4) color coded refrigerant scales and color coded gauge boots Soft Magic high pressure hoses (available with optional anti-blowback fittings)