The STZ Industries 1-1/4 in FIP x 3/4 in FIP Galvanized Malleable Iron Reducing Coupling is built to securely connect and reduce pipe sizes in potable-water or general-use piping systems. Designed for reliability in challenging environments, this coupling combines strong malleable iron with a durable galvanized finish to resist corrosion and extend service life
Why choose this reducing coupling? because it provides a robust, long-lasting solution when you need to transition from a larger pipe to a smaller one without compromising flow or seal. The dual FIP (Female Iron Pipe) threads ensure a tight, leak-resistant connection to standard male piping components, making it ideal for both residential and commercial projects.
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Two FIP ends with a 1-1/4 in to 3/4 in reduction: Easily adapt from a larger supply line to a smaller distribution line in one fitting.
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Lead-Free construction: Average lead content is lead-free, supporting safer potable-water applications.
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Malleable iron core: Combines strength with ductility for durable, dependable joints that withstand pressure and movement.
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Galvanized finish: Resists corrosion in wet or outdoor environments, helping prevent rust and prolonging service life.
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Pressure and temperature tolerance: Rated for up to 300 psi and up to 150°F, making it suitable for typical residential and light commercial systems.
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Practical packaging: Bagged packaging keeps fittings protected during storage and transport.
Ideal use cases
- Residential water lines where a 1-1/4 in main feed must be reduced to 3/4 in branch lines, such as bathroom or kitchen supply runs, laundry connections, or outdoor plumbing feeds.
- Irrigation or garden piping where reliable, corrosion-resistant joints are needed in exposed or damp environments.
- Quick field repairs or retrofit projects where existing piping requires a simple, high-integrity reducer without complex fittings.
Key specifications at a glance
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End 1 diameter — End 1 type: 1-1/4 in, FIP
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End 2 diameter — End 2 type: 3/4 in, FIP
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Material: Galvanized Malleable Iron
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Finish: Galvanized
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Maximum Pressure: 300 psi
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Maximum Temperature: 150°F
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Packaging Type: Bagged
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Product Type: Reducing Coupling
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Lead Content: Lead-Free (Average)
Why it matters: when your piping system demands a secure, corrosion-resistant reducer, this STZ Industries coupling delivers a dependable seal, straightforward installation, and durable performance across a range of typical plumbing and irrigation scenarios. Its galvanized malleable iron construction provides a practical, long-lasting connection that professionals and DIYers can trust for years to come.
