The STZ Industries 4 in. FIP x 4 in. FIP Black Malleable Iron 45 Degree Elbow is a rugged, reliable plumbing solution designed to navigate tight spaces with confidence. With female-threaded ends on both sides, this 4-inch elbow smoothly redirects piping in a clean 45-degree turn, keeping flow steady and joints secure in demanding installations.
Why choose malleable iron? This elbow combines high strength with excellent ductility, absorbing minor misalignments and vibrations that can cause leaks over time. The durable black finish not only looks professional but also provides a layer of protection in typical indoor environments, making it well-suited for residential and light commercial applications.
-
Material: Malleable iron for lasting performance under pressure
-
Finish: Black for a professional, low-profile appearance
-
Ends: 4 in. FIP on each side (FIP x FIP) for easy integration with standard 4 in. female-threaded piping
-
Angle: 45-degree elbow to achieve smooth direction changes and reduce stress on joints
-
Maximum pressure: 300 psi, suitable for hot and cold water and heating system runs
-
Maximum temperature: 150°F, confirming suitability for residential hot water lines
-
Packaging: Bagged to protect threads during shipping and handling
-
Lead content: Lead-free, aligning with modern safety standards
Ideal use cases include navigating around obstacles in residential piping, routing hot or cold water lines in basements and utility areas, and connecting sections of heating systems where a precise 45-degree bend is needed. Its robust construction helps resist deformation under pressure, providing dependable performance over time compared with lighter-duty fittings.
Practical installation tips — ensure a clean, dry thread surface, apply an appropriate pipe thread sealant or PTFE tape rated for water systems, and avoid overtightening to protect the threads. Confirm that your system operates within the 300 psi / 150°F ratings, then perform a pressure test to verify a tight seal before commissioning the line.
Built for reliability in everyday piping projects, the STZ Industries 4 in. FIP x 4 in. FIP Black Malleable Iron 45 Degree Elbow delivers precise direction changes, durable construction, and a professional finish that stands up to real-world use.
