Description
Product Overview
Constructed from durable brass, the Watts Heavy Duty Brass Threaded Stem is engineered to control high-capacity water flow when integrated with float valves. Featuring a 1/4″-20 NPT threaded end for valve connection and a 5/16″-18 NPT end for float attachment, this 12″ long stem ensures secure, leak-free performance. Designed for commercial, industrial, and agricultural applications, it delivers consistent water regulation in demanding environments. The stem’s robust brass construction resists corrosion and maintains structural integrity over time, making it ideal for pressure washers, cooling towers, livestock watering systems, and refrigeration units.
Usage
This stem is commonly used in commercial and industrial water systems where precise flow control is essential. It’s suitable for cooling towers, heat transfer units, livestock watering tanks, pressure washers, and refrigeration systems. Ideal for facilities requiring reliable water management, such as farms, factories, and agricultural operations. The stem’s standard NPT threads ensure compatibility with most float valve systems, making installation straightforward and maintenance minimal.

Why Choose Us
Watts Water Technologies, established in 1874, has a legacy of delivering innovative water solutions. This stem is manufactured with precision to meet industry standards, ensuring long-term performance and reliability. The brass material offers excellent corrosion resistance and durability, even in harsh environments. Each stem is tested for quality and consistency, backed by Watts’ commitment to customer satisfaction. Our product support includes technical assistance and warranty options for added peace of mind.
Key Features
- Heavy-duty brass construction ensures long-lasting durability and corrosion resistance in demanding water applications.
- Standard 1/4″-20 NPT and 5/16″-18 NPT threads provide secure, leak-free connections with most float valves.
- 12″ length and 5/16″ outer diameter offer optimal flow control and compatibility with various water systems.
- Designed for commercial, industrial, and agricultural use, including pressure washers, cooling towers, and livestock tanks.
- Backed by Watts’ reputation for quality and customer support, ensuring reliable performance and after-sales assistance.
FAQ
What is the material of this threaded stem?
This stem is made of durable brass, which provides excellent corrosion resistance and long-term durability in water systems.
What are the thread specifications?
The stem features a 1/4″-20 NPT threaded end for valve connection and a 5/16″-18 NPT end for float attachment, ensuring compatibility with standard float valve systems.
What are the typical applications?
It’s ideal for commercial, industrial, and agricultural applications such as pressure washers, cooling towers, livestock watering tanks, and refrigeration units.
Is this stem suitable for high-capacity water flow?
Yes, this heavy-duty stem is specifically designed to control high-capacity water flow when used with float valves, ensuring consistent performance.
What is the model number?
The model number is KSTEM-11.5, part of the Watts FLT Stems Series, designed for reliable water flow regulation.





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