The 5-1/8" OD Cast Brass Strainer by Braxton Harris is engineered for optimal drainage performance. Featuring four 3/8" screw holes, this strainer ensures a secure fit in various plumbing applications. Its cast brass construction provides durability and resistance to corrosion, making it suitable for both residential and commercial use. The design allows for efficient water flow while preventing debris from clogging drains. This strainer meets industry standards, ensuring reliability and longevity in your plumbing system.