<b>Repair or Extend Your Drip Irrigation System</b> <br> Arfun 1/2" drip irrigation barbed coupling fittings can be used to connect two pieces of 1/2 inch drip irrigation tubing together. With these coupling connectors, you can easily repair or extend your drip irrigation system. These 1/2 inch drip irrigation parts are compatible with most generic 1/2 inch drip line. It can be applied for garden, greenhouse, flower bed, patio and lawn, and other agricultural watering system. <br><br> <b>Long-lasting Plastic Material</b> <br> Made of high quality sturdy plastic materials, this 1/2 inch barbed couplings won’t break or deform easily.<br><br> <b>Secure Barbed Design</b> <br> Two barbed ends connect irrigation tubing for a secure leak-proof connection. <br><br> <b>Easy Installation, No Tools Needed</b> <br> There is no need of glue or other tools to install this 1/2’’ drip fittings. You can easily insert it into the hose, which is securely connected and is not easy to fall off.<br><br> <b>How to Install</b> <br> Push the tubing firmly over the barbed side of the irrigation coupler to make sure tight installation.<br> (You may use a heat gun to soften the end of the tubing before inserting.)<br><br> <b>Specifications:</b> <br> ☈Material--plastic<br> ☈Compatible-- 17mm 1/2" drip tubing ( 0.560 to 0.600 Inner Diameter)<br> ☈Quantity-- 20 pieces<br><br> <b>Note:</b> <br> For 1/2 inch tubes, there is a big variation in internal diameters of these tubes (.520 - .620"). Be sure of the sizes and buy fittings that "fit". If your tubes is 0.520", you need size 16mm.<br>