1/2 Inch Drip Irrigation Parts: save time buying what you need at once; Your 1/2 Inch drip irrigation system installation with this set of essential components for building a maintenance-free drip system Fits most tubing 1/2 inch: these drip irrigation parts are approximately fits pipes with an inner diameter of 13 mm and outer diameter of 16 mm; 520 ID range, high-impact plastic construction, ideal for garden Greenhouse, flower bed, patio, lawn Plastic 1/2 Inch irrigation fittings kit: our 1/2 Inch drip irrigation accessories adopt engineering plastics with anti-aging formula, which are strong enough even with excessive usage No Tool Required and Easy to Use: these 1/2 Inch drip irrigation connectors are secure and easy installation without glue, tools, or clamps; Simply push the tubing firmly over the barbs for a very tight fit that won't leak Sufficient quantity: 8 pieces tees, 8 pieces couplings, 8 pieces elbows, 8 pieces end cap plugs; A total of 32 sets, to meet your long-term use needs