The 12" paintball macroline air hose is a length of high-pressure tubing that transports compressed air or CO2 from the marker's ASA to the Inline Regulator. It provides a flexible, high-pressure air supply line, allowing for a customized setup. • Provides flexibility: The macroline can be cut to the exact length needed, allowing for various setups and configurations for players' comfort and advantage. • High-pressure rated: These hoses are designed to withstand the high pressures (often up to 1000psi working pressure) of compressed air or CO2 used in paintball. • Ease of assembly: The macroline system uses a push-to-connect feature, making it easier to disconnect from the fittings. Features: 12" Length, cut to length 1000 psi working pressure 3000 psi bursting pressure 1/4" OD x .062 ID