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【PREMIUM QUALITY】MuHize DOT air hose fittings are made of high-quality CA360 brass, meets D.O.T. FMVSS 571.106 approved, SAE J1131 air brake system requirements, with corrosion resistance, high-temperature ductility, low permeability and long service life.

【MAX WORKING INTENSITY】MuHize DOT brake line fittings can be operated in pressures from vacuum to 250psi ((17.2 bar) and in temperatures from -40°F to +200°F (-40°C to +93°C).

【EASY TO INSTALL】MuHize DOT air fitting kit quicks disconnect push tubing in, you need to use tools to fix loose parts to handle in tight places so that use will be firmer and not easy to fall off. And pieces that contain a threaded end already have sealant pre-applied to provide a secure connection.

【WIDE APPLICATION】MuHize brass DOT air brake fittings can be used with air suspension systems, copper tubing in airlines brake systems, perfect for truck /RV repair air line leak, also ideal for industrial workshops, daily garden or lawn mower repair, towing machine hose connection, etc.

【PACKAGE INCLUDES】4PCS DOT solid air hose connectors 3/8 inch straight union. Keep this kit in your truck in case you need to make a pneumatics repair on a truck.