⁦It is used in non-pressure drainage systems. Made of durable PVC, this cleanout features a spigot end and a female pipe thread (FPT) end for easy installation. It is NSF listed and IAPMO certified, ensuring compliance with industry standards. With a maximum temperature rating of 140 degrees Fahrenheit, it is suitable for a wide range of applications. This cleanout adapter comes with a plug, making it convenient for accessing and cleaning your drainage system. 4 in. NSF listed and IAPMO certified. Maximum temperature rating is 140 degrees Fahrenheit.⁩