Meet the STZ Industries 4 in. FIP x 4 in. FIP x 4 in. FIP Black Malleable Iron Tee — a rugged, three-way pipe fitting designed to organize and optimize your 4-inch piping network. Crafted from durable malleable iron and finished in a sleek black coating, this tee provides reliable thread connections for easy, field-ready assembly in water, HVAC, or light industrial applications. Its lead-free construction adds peace of mind for systems where safety and compliance matter.
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Three 4" FIP ends for straightforward connections to standard male 4" pipes, enabling clean, direct branching in any 4" system.
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Material and finish: Malleable iron with a black finish that balances durability with a professional appearance in exposed installations.
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Performance ratings: Rated up to 300 psi and capable of handling temperatures up to 150°F, making it suitable for most cold and warm water lines and other low-to-moderate temperature fluids within spec.
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Lead-free formulation (average lead content): Built with safety in mind for drinking-water-related applications and compliant workflows where lead minimization is important.
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Practical packaging: Bagged to protect threads and ensure ready-to-use condition on job sites or in contractor stock.
The 4 in. FIP three-way configuration delivers a reliable junction for splitting flow to two branches or routing a line through a critical manifold. Compared with other connection approaches, this malleable iron tee offers robust threaded joints that can be assembled without special equipment, saving time on installation and reducing potential leak points at soldered or welded joints.
Ideal use cases include distribution and branch-off points in potable or non-potable water systems, low-pressure irrigation lines, or light industrial piping where a sturdy, threaded 4" tee is required. It’s particularly well-suited for retrofit projects, service line expansions, or any scenario requiring quick, durable, threaded connections in a 4" network.
Tips for best results:
- Apply an appropriate pipe thread sealant or PTFE tape rated for metal threads to ensure a leak-free seal.
- Hand-tighten and then snug with a pipe wrench, taking care not to over-torque the threads.
- Verify that operating conditions (pressure and temperature) stay within the 300 psi / 150°F limits for reliable performance.
- Inspect threads for damage before installation; replace if threads are nicked or deformed.
