Push Connect Fittings 1/4" 3/8" 1/2",Air Line Quick,Nylon Tubing 1/4", 37Pcs Product Details ?Package List?37 Pieces in Total,12 pcs straight push connectors. 9 pcs 90elbows connectors. 6 pcs straight tube union connectors. 5 pcs tube tees. 5 pcs 90elbows NPT Thread. 5 pcs tube tees. 5 pcs 90 elbows NPT thread. push fitting types: 1/2", 3/8", 1/4". ?Excellent qualit?air brake fitting is made of high quality polybutylene terephthalate, high temperature resistant and environmentally friendly. The internal links are equipped with stainless steel locking claws, steel washers, and can be bounced a thousand times. ?Wide range of application?air fitting kit is widely used in air braking systems for semi-trailers, trailers, buses, mobile equipment, industrial workshops and various other machinery, as well as in the field of horticultural maintenance and lawnmowers. ?EASY TO INSTALL?The air brake fitting is a simple push-fit design that is easy to install. The release ring at the top can be easily pushed down when inserting the hose into the fitting and pops up immediately when removing the hose. ?AFTER-SALES GUARANTEE?If you have any questions about Sammeryair brake fitting, please feel free to contact us. We will do our best to help you solve the problem and ensure a pleasant shopping experience for you. 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.