Durable brass construction ensures longevity and reliable performance in aquatic environments. Available in multiple sizes: 1/2", 3/4", 1", 1-1/4", 1-1/2", and 2" to fit various plumbing needs. devised for water applications, effectively preventing backflow and maintaining optimal water flow. Easy to install with internal threads, making it compatible with standard plumbing fittings. Manual operation allows for precise control over water flow, ideal for aquarium setups and other water systems., Manufacturer: Vividcrate