Introducing the Smith-Cooper 1/4 in. FPT x 1/8 in. FPT Stainless Steel Reducing Coupling—the compact, rugged connector you reach for when pipe sizes don’t match. Crafted for reliability in challenging environments, this reducing coupling pairs two different female pipe thread sizes with a single, secure seal.
End connections are both FPT (female pipe thread): 1/4 in. on one end and 1/8 in. on the other. Made from durable stainless steel, it resists corrosion, rust, and wear in moisture-prone spaces, outdoor installations, or coastal settings. The lead-free construction supports safer potable-water applications, giving you peace of mind in everyday use.
Why this reducing coupling stands out
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Precise, reliable threads: Each end is carefully machined to accept standard male threads, delivering a tight, leak-resistant connection when paired with compatible fittings.
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Material advantage: Stainless steel offers exceptional durability and corrosion resistance compared with plated alternatives, making it ideal for kitchens, bathrooms, outdoor projects, and marine environments.
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Lead-free construction: Engineered with safety in mind, suitable for potable-water lines and flexible retrofit installations without compromising performance.
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Retail-ready packaging: Carded packaging ensures easy display and quick identification in-store or at the job site.
Ideal use scenarios include repairing or adapting plumbing runs where a 1/4 in. line needs to connect to a smaller 1/8 in. line, seasonal irrigation upgrades, appliance hookups, and maintenance work on marine or outdoor fixtures. It’s the practical, space-saving solution when you must bridge different pipe sizes without bulky adapters.
Installation tips
- Clean and deburr the male threads before assembly for a smooth, leak-proof seal.
- Apply an appropriate pipe thread sealant or PTFE tape to the male threads in the direction of tightening.
- Tighten with a wrench until snug, then give a slight additional turn to ensure a secure fit without over-tightening.
Specifications at a glance
- Product type: Reducing Coupling
- Material: Stainless Steel
- End 1: 1/4 in. FPT
- End 2: 1/8 in. FPT
- End 1 Diameter / End 2 Diameter: 1/4 in. × 1/8 in.
- Lead content: Lead-Free
- Packaging: Carded
When you need a dependable, corrosion-resistant link between mismatched pipe sizes, the Smith-Cooper 1/4 in. FPT x 1/8 in. FPT Stainless Steel Reducing Coupling delivers a durable, straightforward solution—designed to perform in real-world conditions where plumbing quality and lasting seals matter most.
