The Legend Valve 3/4 inch no lead bronze water service pack joint CTS x pack joint CTS coupling is a durable, lead-free bronze pack joint union designed for reliable underground water service connections. The pack joint (CTS) design ensures secure, leak-resistant connections with type K or L copper tubing and SDR-9 polyethylene tubing (with stiffener.) Built to meet AWWA C800 standards, this coupling provides long-lasting performance for both new installations and repair projects. Certified to NSF/ANSI 61 and NSF/ANSI 372, it is safe for potable water systems and delivers the quality and dependability professionals and homeowners trust.