These fittings with internal threads are pipes securely and efficiently. The standard internal thread ensures compatibility with standard plumbing systems, making these fittings ideal for water line installations and repairs. Their robust construction and easy installation make them a for both home and industrial plumbing applications, ensuring a leak- and reliable connection. Features -Color:White -Material:PVC -Size:4.00X2.80X2.10cm/1.57X1.10X0.83in -Diameter:21.3mm - Construction: constructed from pvc , this fitting ensures reliable performance and longevity in various plumbing applications -Impactresistant design: the pvc female threaded straight pipe fitting is designed to handle impact without breaking, making it a robust choice for demanding environments -Multifunctional adapter: this adapter is suitable for a wide range of applications, including irrigation systems, underground sprinkler systems, cold water supply lines, fire sprinklers, and rainwater harvesting -Secure and tight connection: the combination of a slip opening and internal threads provides a secure and tight connection, preventing leaks and ensuring efficient water flow -Indoor and outdoor compatibility: designed for both indoor and outdoor environments, this fitting is for irrigation, swimming pools, spas, potable water systems, and chilled water applications Package list: 8 x internal thread pipe joints