Introducing the STZ Industries 3/8 in. FIP x 1/8 in. FIP Galvanized Malleable Iron Reducing Coupling — a precision-built, lead-free connector designed to bridge two pipe sizes with reliability. Its galvanized finish guards against corrosion, while the tough malleable iron core delivers enduring performance in demanding plumbing, heating, and irrigation applications.
Key features
- End 1: 3/8" FIP (Female Iron Pipe)
- End 2: 1/8" FIP (Female Iron Pipe)
- Material: Malleable iron for superior strength and impact resistance
- Finish: Galvanized to resist rust and corrosion in wet environments
- Maximum pressure: 300 psi
- Maximum temperature: 150 °F
- Packaging: Bagged for compact storage and easy handling
- Product type: Reducing coupling (FIP x FIP)
- Lead content: Lead-free for safer potable water connections
Ideal use cases
- Adapting a larger-diameter supply line to a smaller fixture or appliance in residential or commercial plumbing.
- Repairs or retrofit projects where a quick, dependable reducer is needed without replacing entire runs of pipe.
- Potable water installations, where lead-free construction supports safety and code compliance.
- Heated water systems and light irrigation setups that require durable, corrosion-resistant fittings.
Why this reduces your project risk
The combination of galvanized malleable iron and lead-free construction offers a robust, long-lasting connection in environments prone to moisture and temperature fluctuations. Unlike non-galvanized or lower-grade fittings, this reducer maintains integrity under repeated thermal cycles and physical handling, helping to prevent leaks and service interruptions.
Installation tips
- Confirm the two pipe sizes: 3/8" FIP on one end and 1/8" FIP on the other.
- Apply a compatible thread sealant or PTFE tape rated for potable water to the male threads, following standard wrapping guidance.
- Hand-tighten first, then snug with a wrench—avoid excessive force to prevent thread damage.
- After installation, perform a pressure test to verify a leak-free connection before putting the system back into service.
Designed by STZ Industries, this galvanized malleable iron reducing coupling offers a dependable, code-conscious solution for transforming a branch or feeder line from 3/8" to 1/8" FIP. Its compact form, durable construction, and lead-free assurance make it a practical choice for installers and DIY enthusiasts aiming for durable, sanitary, and professional results.
