Beautiful and Effective: Features a special process technology with a widened sealing surface at the water outlet to ensure a tight fit with the sprinkler's sealing gasket. 95% of shower heads achieve excellent water sealing without Teflon tape, maintaining the clean aesthetic of your bathroom. Safe: Constructed from marine-grade 304 stainless steel, offering over twice the strength of ordinary brass. Resistant to acid, alkali, and salt, providing long-term corrosion resistance to prevent clogging from rust, especially suitable for hard or hot spring water. Bake Paint Finish: Utilizes electrostatic adsorption technology and micron-level paint sedimentation process. Delivers a stable, durable surface finish similar to automotive paint. North American Standard: Straight shower arm manufactured to strict North American standards. Features male ends with NPT 1/2"-14 (longer end) and G1/2" (shorter end) connectors, compatible with most plumbing systems in North American households.