John Guest® introduces its NPS black female connectors manufactured from high-quality engineered plastic, lead-free, corrosion-resistant and contain an EPDM O-ring. The twist-and-lock technology guarantees extra security for users, while the UV-stabilized body can be used reliably outdoors. Now available in a range of sizes from 0.5- to 1.0-inch CTS and up to 1.25-inch NPS thread. NPS black female elbow connectors, offered in a range of sizes from 0.75- to 1.0-inch CTS and up to 1.25-inch NPS thread, are manufactured with EPDM O-rings and also incorporate the twist-and-lock technology, providing more security for a leak-proof connection. In addition to being lead-free, these products are also UV stabilized, allowing for functionality outdoors. Both types of connectors are made for use in water quality and domestic plumbing, hot and cold water and hydronic heating. They are also NSF 14- and NSF 61-certified and comply with the latest edition of the Uniform Plumbing Code® and the International Plumbing Code®.