Brass Compression Fittings — Reliable Pipe Connections for Plumbing, Irrigation & DIY Projects
Whether you're repairing a leaking water line under the sink, extending an irrigation system in the backyard, or building out a compressed air setup in the workshop, finding a fitting that seals tight and stays that way is half the battle. Loose connections, mismatched thread sizes, and cheap zinc alloy substitutes cause headaches that cost time and money. These brass compression fittings are built for homeowners, plumbers, and DIYers who need a dependable, thread-ready solution the first time.
Each fitting is machined from solid brass — a copper-zinc alloy known for its machinability, corrosion resistance, and long service life. Available in straight coupling and 90° elbow configurations, with both Female×Female (F×F) and Female×Male (F×M) connection styles. Sizes span 1/2", 3/4", and 1" nominal pipe thread, with body lengths ranging from 31mm (≈1.2") to 70mm (≈2.8") depending on the variant. Sold individually or in multi-packs of 2, 4, or 8 pieces.
Typical use cases include residential water supply line repairs, garden drip irrigation manifold assembly, workshop air compressor line routing, and HVAC condensate drain connections — anywhere a leak-free brass pipe adapter is needed for a long-term fix.
🔗 Compatibility: Designed for standard threaded pipe systems. Select your connection size (1/2", 3/4", or 1") and configuration (F×F straight, F×M straight, or elbow) from the variant options above. If you are unsure of your pipe thread standard (NPT vs. BSP), contact us before ordering.
✅ Key Features of These Brass Compression Fittings
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🔩Solid Brass Construction — Machined from copper-zinc brass alloy for durability, corrosion resistance, and reliable performance in water, air, and low-pressure gas lines.
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🔄Straight & Elbow Configurations — Choose from straight couplings for in-line connections or 90° elbow connectors for directional changes — both available in F×F and F×M thread styles.
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📐Multiple Size Options — Available in 1/2", 3/4", and 1" nominal pipe sizes with body lengths from 31mm to 70mm (≈1.2" to 2.8"), covering the most common residential and light commercial pipe adapter needs.
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💧Leak-Free Threaded Seal — Precision-machined threads provide consistent engagement with standard pipe threads; use with PTFE tape for a leak-free seal on water supply, irrigation, and compressed air lines.
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🏗️Reducer & Same-Size Coupling Options — F×M variants allow you to reduce or adapt between different pipe sizes (e.g., 3/4" to 1/2"), making these fittings versatile for mixed-size plumbing runs.
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📦Flexible Pack Quantities — Order 1, 2, 4, or 8 pieces per variant to match your project scope — whether it's a single repair or a full irrigation manifold build-out.
📐 Technical Specifications — Brass Compression Pipe Fittings
| Material |
Brass (copper-zinc alloy) |
| Fitting Types |
Straight Coupling, 90° Elbow |
| Connection Styles |
Female × Female (F×F), Female × Male (F×M) |
| Available Pipe Sizes |
1/2", 3/4", 1" nominal pipe thread |
| Body Length Range |
31mm (≈1.2") – 70mm (≈2.8") — see variant options |
| Thread Standard |
See variant options — contact us to confirm NPT or BSP |
| Finish |
Natural brass (uncoated) |
| Typical Working Pressure |
Generally up to 200 PSI for water (contact us to confirm for gas/air) |
| Suitable Media |
Water, compressed air, low-pressure gas (verify local codes for gas) |
| Pack Quantities |
1, 2, 4, or 8 pieces per order |
| Country of Origin |
See variant options |
⚠️ Installation Note: Always use PTFE tape or thread sealant on male threads before assembly. Verify thread standard (NPT/BSP) compatibility with your existing plumbing before ordering. Gas line use must comply with local building codes.
❓ Frequently Asked Questions
How do I choose the right size brass compression fitting?
Match the fitting size to your pipe's outer diameter (OD). For example, a 1/2" fitting typically suits pipe with a 1/2" OD. Measure your pipe OD with calipers before ordering. If you're connecting two different pipe sizes, select a reducer coupling that matches both ends. Each variant label lists the thread size and overall body length in mm for easy reference.
How much pressure can these brass compression fittings handle?
Brass compression fittings generally handle working pressures up to 200 PSI for water applications, though the exact rating depends on pipe size, temperature, and installation quality. For high-pressure or steam applications, please contact us to confirm suitability before ordering.
Can these fittings be used outdoors or in wet environments?
Yes. Brass is naturally corrosion-resistant and performs well in outdoor, humid, and wet environments. It is not recommended for highly acidic or saline conditions without additional protection. For fully submerged or marine applications, contact us to confirm compatibility.
Are these fittings compatible with standard NPT or BSP threads?
These fittings are generally compatible with standard pipe thread systems. The thread standard (NPT or BSP) depends on the specific variant. Please check the variant description or contact us to confirm thread compatibility with your existing plumbing system before purchase.
What is the difference between Female×Female and Female×Male configurations?
A Female×Female (F×F) fitting has internal threads on both ends and connects two male-threaded pipes or fittings. A Female×Male (F×M) fitting has internal threads on one end and external threads on the other, allowing you to extend or adapt a run where one side is already female-threaded. Choose based on the thread type of the pipes or fittings you are connecting.
Do I need thread sealant or Teflon tape with these fittings?
Yes, applying PTFE (Teflon) tape or a thread sealant compound to the male threads before assembly is strongly recommended. This ensures a leak-free seal and makes future disassembly easier. Wrap the tape clockwise (when facing the thread end) for 2–3 layers before threading the fitting on.
Can I use these fittings for gas lines?
Brass fittings are commonly used in low-pressure gas applications. However, gas line installations are subject to local building codes and safety regulations. Always verify that the specific fitting and size you select is rated and approved for gas use in your jurisdiction before installation.
🛒 Select your size and quantity above, then add to cart — ships from our US warehouse.
