1/4" Quick Push To Connect Fittings Brass 90 Degree Union Swivel Elbow Joint Dot Product Details ?High Quality Precision Brass?LONG SERVICE LIFE - 1/4" Tube OD x 1/4" NPT Thread 90 Degree Elbow DOT approved fittings are made of high quality solid CA360 brass with red sealent coated, durability and corrosion resistance. Withstands pressures up to 250psi, and wide temperature range from -40? to 160?(-53? to 121?) ?Quick Push to Connect?PTC (Push-to-Connect) design for quick and easy connection and disassembly to air lines, just insert the tube directly into the air tube bottom for connection, and press the button then Pull out the tube for disassembly ?DOT Approved?Meets D.O.T. FMVSS 571.106 approved, SAE J1131 air brake system requirements. For no air leakage, when installing our air suspension kit, please ensure that the cross section of the air line is smooth and flat, no gap, uneven, and the tube cannot be oval ?360 Free Rotation?The connecting part can be rotated 360 degrees, allows you easier to install and use. Even after installation, just rotate the joint body to adjust the direction ?Wide Application?Boeray DOT push to connect fittings are suitable for automotive, pneumatic and air brake systems such as air bag spring suspension line repair kits, and also can be used for brake air lines and other conventional 1/4" nylon air lines 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.