The Stetson 3/8" MPT Auto Fill Standard PVC Valve (model 3/8 ATF) offers a simple and reliable solution for automating water level management. Constructed from durable, corrosion-resistant PVC, this valve is designed for long-lasting performance in a variety of applications. The 3/8" MPT (Male Pipe Thread) connection makes installation easy with standard plumbing fittings. This auto-fill valve is commonly used in pools, spas, fountains, ponds, water tanks, and other systems where consistent water levels are essential.

Its automatic operation ensures that water is added as needed, preventing overflows and maintaining optimal levels