【Extended Stem for Deeper Insertion and Safer Sealing】 wdaisy press ball valves feature an extra-long valve stem that inserts deeper into copper tubing, providing a more secure mechanical grip. This extended core design helps prevent leaks and loosening under pressure — ideal for plumbing and HVAC shut-off applications. 【Extended Stem for Deeper Insertion and Safer Sealing】 wdaisy press ball valves feature an extra-long valve stem that inserts deeper into copper tubing, providing a more secure mechanical grip. This extended core design helps prevent leaks and loosening under pressure — ideal for plumbing and HVAC shut-off applications. 【Heavy-Duty Brass Body – Heavier and More Durable - Press fitting】 Constructed with thick-wall, lead-free brass, this valve weighs more than typical models, ensuring superior strength and corrosion resistance. Trusted by pros for commercial plumbing, residential copper pipe systems, and press-to-connect installations. 【Full Port with 1/4 Turn Shut-Off for Max Flow Control】 The full port design allows unrestricted water flow, reducing pressure drop. Combined with a 1/4-turn handle, it offers smooth, fast shut-off functionality — perfect for water supply valves, pipe isolation, and maintenance work. 【Certified Safe – cUPC, NSF/ANSI 61 & 372 Approved】 Our lead-free press ball valves are fully certified for potable water use and meet ASME B16.51 standards. Compatible with K, L, M type copper tubing, and designed for press-fit installation using standard tools — no solder, flame, or glue needed. 【Universal Compatibility with Press Tool】 Engineered to fit most standard copper press tool and jaws used in the plumbing industry. Ensures quick, secure, and leak-proof connections—perfect for both professional contractors and DIY installations. Upgrade your plumbing system with the wdaisy Lead-Free Brass Press Ball Valve, engineered for durability, safety, and high flow performance. This press x press full port shut-off valve features an extended valve stem that inserts deeper into copper tubing, providing a stronger mechanical seal and enhanced protection against leaks and vibrations. Designed with dual EPDM O-rings, this press-to-connect ball valve delivers double sealing protection, making it ideal for potable water systems, HVAC applications, and both residential and commercial copper pipe installations. Constructed from heavy-duty, thick-wall lead-free brass, this Press ball valve offers long-lasting reliability and corrosion resistance. The blowout-proof stem and 1/4-turn handle allow smooth, secure operation for hot and cold water shut-off, isolation, or maintenance valves. wdaisy press fittings are compatible with type K, L, and M hard copper tubing and meet ASME B16.51 standards. Certified to NSF/ANSI 61, NSF 372, and cUPC, this lead-free press ball valve ensures safe and code-compliant use in any plumbing or heating system. Whether you're a professional installer or DIY homeowner, wdaisy delivers unmatched value and reliability in every connection.