Introducing the Eastman Flare Brass Fitting Cap, a reliable solution to seal off all 5/8 inch OD flared fittings on gas ball valves or gas supply stubouts. Crafted from durable zinc-plated steel, this gas line flare cap ensures long lasting protection against rust, stains, and UV exposures, providing a robust and resilient solution for your propane gas connections. The 5/8 inch OD brass propane gas line cap is compatible with gas connector nuts, gas appliance inlets, gas ball valves, or gas supply stub outs, offering versatile connectivity options for various gas applications. Included in each package is (1) 5/8 inch OD flare cap, making it convenient and ready for use. Installation is a breeze with no special tools required. Simply clean the pipe threads, apply sealant, thread the steel fittings to the manual shut-off valve, and turn on the valve. To ensure a secure connection, use a gas leak test solution, but remember not to apply thread sealant to flared ends. Enhance the efficiency and safety of your gas connections with the Eastman Flare Brass Fitting Cap, a reliable and easy-to-install solution for all your propane gas needs.