[Premium Copper Construction]Crafted from high-quality copper, this diving regulator port screw offers exceptional wear resistance, anti-rust properties, and corrosion protection. Built to withstand harsh marine environments and provide long-lasting performance. [Advanced Leak Prevention]Equipped with a precision rubber sealed ring, our diving stopper ensures superior leak-proof performance. Maintain optimal pressure integrity in your diving equipment with this reliable sealing solution. [Dual-Size Versatility]Includes two specialized sizes for comprehensive coverage: • Low Pressure Screw: 1.4x1.4x1cm (0.55x0.55x0.39inch) • High Pressure Screw: 1.3x1.3x1.05cm (0.51x0.51x0.41inch) Perfect for both low and high pressure diving regulator systems. [Professional Grade Quality]Manufactured to exacting standards, this bung ensures perfect compatibility with various diving equipment. Experience seamless fitting and enhanced safety during your underwater adventures. [Portable and Convenient]Compact design allows easy storage in dive boxes or bags. Essential for dive professionals and enthusiasts who need reliable port protection anytime, anywhere. Specifications: • Material: Copper and Rubber • Color: Natural Copper (as pictured) • Package Includes: 1 Piece Diving Regulator Port Screw Note: Slight color variations may occur due to monitor settings. Measurements have minimal tolerance due to manual checking. Upgrade your diving gear maintenance with our professional-grade regulator port screws – where precision engineering meets underwater reliability!