Suction hoses are available in 4-inch and 6-inch sizes with 10-ft lengths (note: Other lengths can be manufactured). The hose is non-collapsible material (Type B) per MIL-PRF-370J and is Black in color. Each hose is equipped with cam-lock fittings per A-A-59326. The 4-inch hoses have two cam arms and the 6-inch hoses have four cam arms. All hose assemblies have captive dust caps and plugs. Each hose is hydrostatically tested to 150 psi and has a working pressure rating of 75 psig. All hoses are grounded from coupling to coupling with a resistance of 1.5 ohms per foot or less. 100% American made.