[PE MATERIAL] The 90° elbow water pipe connector is made of high-quality PE material, which is safe, non-toxic, free of harmful elements, durable and resistant to high pressure[EASY INSTALLATION] Simply press the pipe elbow into the pipe and lock the pipe with the screw cap, which has good sealing and prevents water leakage[GOOD STABILITY] The material has high stability, is resistant to acid, alkali, salt, moisture, soil, sunlight and aging, and can be buried in the ground or in the open air[WIDELY APPLICABLE] Mainly used for water pipe connection, widely used in urban greening, greenhouses, gardens, courtyards, flower planting, vegetable greenhouses, etc.[IMPORTANT NOTE] The size of the connection ports on both sides of the elbow is 16mm, please be sure to check the size and purchase the correct parts for your drip irrigation system