1/4" Dot Air Fittings,Dot Brass Push To Connect Fitting, Air Brake Line, 5Pcs Product Details ?PREMIUM MATERIAL??Our air brake fittings are made of high quality CA360 brass,Meets D.O.T FMVSS 571.106 ,SAE J1131 Air Brake system Requirements and Air Brake system Requirements,with corrosion resistance, high temperature ductility and low permeability. Great for long time use, dot air brake fitting pneumatic fittings type: 1/4" . ?EASY TO USE?: All dot air quick connect fittings can be sealed by pushing the tube firmly into the fittings and they are also simple to be removed from the tube. ?TYPICAL APPLICATION??Air brake fittings assortment kit can be used with air systems, copper tubing in air lines brake systems, which is perfect for automotive car or truck repair,air operated seats, operating gauges, air horns, industrial workshops, air brake connections,towing machine hose connection and air brake connections or lawn mower repair. ?PRESSURE RANGE?: Air brake fittings working pressure from vacuum to 250 psi. Temperature Range: -40 F to +200 F?-40C to +93C?(Note: see tubing manufacturer?s recommendations for pressure and temperature mutations) ?QUALITY GUARANTEE?: The air brake fittings with corrosion resistance, high temperature ductility and low permeability. Great for long time use .If you encounter problems can contact us at any time,we will try my best to solve your problems as soon as possible until you are satisfied. Payment We accept PayPal and credit cards via PayPal. Taxes - US We collect sales tax, as required by law. Shipping We make every effort of shipping within 3 business day of payment clearing. The estimated delivery time is 2 - 5 business days from the shipping date. Policies If you do need to return your item, please contact us via email (you will receive an email when your product ships with additional details - Subject: Important information about your purchase). You will then be provided with a return shipping label and packing slip. Pack the item carefully. Include the packing slip, apply the shipping label, and return the item within 30 business days of the date you request a return, or your return will be canceled. Once we receive your order we will inspect the return. Please allow up to 5 business days of receiving the returned item for your refund.