When setting up a shop air system, one of the biggest questions is: what piping material should I use? Many DIYers and pros turn to copper pipe for compressed air because it’s durable, clean, and long-lasting. But is copper always the best choice, and what do you need to know before using it?
This guide explains the pros and cons of copper pipe in compressed air systems, compares it to other piping options, and highlights the best tools, kits, and compressors for a shop-ready setup.
Quick Picks: Best Compressed Air Piping Systems ($300+)
- Best Overall: RapidAir MaxLine 3/4-Inch Piping Kit – Easy to install, durable, and designed specifically for shop air systems.
- Best Budget: SharkBite Copper Pipe & Fitting Starter Kit – Affordable way to use copper piping with push-to-connect fittings.
- Best Premium: Prevost PPS Aluminum Air Piping System – Industrial-grade modular system with pro-level fittings.
Buyer’s Guide: Why Use Copper Pipe for Compressed Air?
Copper pipe has been a staple in plumbing and compressed air systems for decades. Here’s why it’s often chosen:
Advantages of Copper Pipe
- Corrosion Resistance: Unlike black iron pipe, copper won’t rust and contaminate your air tools.
- Durability: Strong, long-lasting, and can handle high pressures when sized correctly.
- Clean Air: Helps prevent debris, scale, and rust particles in air lines.
- Heat Dissipation: Copper cools compressed air, reducing moisture in the system.
- Availability: Easy to source at most hardware stores.
Disadvantages of Copper Pipe
- Cost: More expensive than black pipe or PEX alternatives.
- Installation: Requires soldering/brazing unless using push-fit fittings.
- Theft Risk: In some areas, exposed copper can be targeted for scrap value.
Types of Copper Pipe for Air Systems
- Type L: Recommended for most shop systems. Thicker wall, strong enough for compressed air.
- Type M: Thinner wall, not recommended for high-pressure systems.
- Type K: Heaviest wall, often used underground or in industrial setups.
Installation Tips for Copper Pipe Air Systems
- Plan the Layout: Use a loop-style system to balance air pressure across the shop.
- Slope the Lines: Angle piping slightly back toward the compressor to help drain moisture.
- Use Drop Legs: Run vertical lines with drain valves to capture water before it reaches tools.
- Secure Joints: Either solder/braze fittings or use certified push-to-connect copper fittings.
- Add Filters & Regulators: Place them at tool connections for cleaner, drier air.
Detailed Product Reviews ($2,000+ Shop Compressors & Piping Systems)
1. RapidAir MaxLine 3/4-Inch Piping Kit
Who it’s for: Shops wanting an easy-to-install air piping system that rivals copper.
- Key Benefits: Flexible aluminum-lined tubing, compression fittings, corrosion resistant.
- Pros: DIY-friendly, no soldering, long-lasting.
- Cons: More expensive than black pipe.
Final Verdict: Best alternative to copper piping. Check Price
2. SharkBite Copper Starter Kit
Who it’s for: DIY users who want to set up copper piping without soldering.
- Key Benefits: Push-to-connect copper fittings, quick installation.
- Pros: No flame required, easy disassembly.
- Cons: Higher cost per fitting.
Final Verdict: Best way to set up copper piping quickly. See Price
3. Prevost PPS Aluminum Air Piping System
Who it’s for: Professional shops wanting a modular industrial system.
- Key Benefits: Lightweight aluminum, high-pressure rated, premium fittings.
- Pros: Professional quality, modular design, corrosion free.
- Cons: Higher cost than copper or PEX.
Final Verdict: Best premium air piping option. Check Price
4. Quincy QT-54 60-Gallon Two-Stage Compressor
Who it’s for: Shops pairing a reliable compressor with copper or aluminum piping.
- Key Benefits: 5 HP, 15.2 CFM @ 175 PSI, cast-iron pump.
- Pros: Long-lasting, rebuildable, great shop option.
- Cons: 60-gallon tank smaller than 80-gallon alternatives.
Final Verdict: Best compressor to anchor a copper piping system. Check Price
5. Ingersoll Rand 2475N7.5-V 80-Gallon Compressor
Who it’s for: Heavy-duty shop users needing industrial performance.
- Key Benefits: 7.5 HP, 24 CFM @ 175 PSI, cast-iron construction.
- Pros: Rugged, reliable, parts availability.
- Cons: Premium cost.
Final Verdict: Best premium compressor for large copper systems. Check Price
6. EMAX Quiet Series 7.5 HP 80-Gallon
Who it’s for: Buyers who want high output and reduced noise.
- Key Benefits: Quiet technology, pressure-lubricated pump, 175 PSI.
- Pros: Quieter than most piston compressors, industrial build.
- Cons: Still louder than a rotary screw.
Final Verdict: Best quiet compressor option for copper setups. Check Price
Comparison Table
| Product | Type | Key Benefits | Best For | Price |
|---|---|---|---|---|
| RapidAir MaxLine | Piping Kit | Flexible, corrosion resistant | DIY & pro shops | Check Price |
| SharkBite Copper Kit | Copper Fittings | Push-to-connect, no solder | DIY copper installs | See Price |
| Prevost PPS | Aluminum Piping | Modular, industrial-grade | Professional shops | Check Price |
| Quincy QT-54 | Compressor | 5 HP, 60 gal, 15.2 CFM | Shop anchor system | Check Price |
| Ingersoll Rand 2475N7.5-V | Compressor | 7.5 HP, 80 gal, 24 CFM | Industrial shops | Check Price |
| EMAX Quiet Series | Compressor | Quiet, high output, 80 gal | Noise-sensitive shops | Check Price |
Frequently Asked Questions
Is copper pipe safe for compressed air?
Yes. Type L or Type K copper is recommended. Avoid Type M for high-pressure systems.
What size copper pipe should I use?
3/4-inch is common for small shops. Use 1-inch or larger for high-CFM systems to reduce pressure drop.
Do I need to solder copper pipe for air?
Not always. Push-to-connect fittings like SharkBite make installation faster without heat.
Is copper better than black iron pipe?
Yes, because it won’t rust internally. However, it costs more up front.
What’s the best alternative to copper pipe?
Aluminum modular piping systems like RapidAir or Prevost are easier to install and offer similar benefits.
Conclusion
Copper pipe for compressed air is a proven, reliable choice for clean, rust-free shop air systems. While it costs more and requires more installation effort, it provides durability and performance that last decades. If you’re setting up a new system, consider copper for long-term reliability, or go with modern aluminum systems for faster installation.
The RapidAir MaxLine is the best all-around piping solution, the SharkBite Kit makes copper installs simple, and the Prevost PPS is the premium pro shop choice. Pair them with a dependable compressor like the Quincy QT-54 or Ingersoll Rand 2475N7.5-V for a complete setup.
Check today’s best copper and modular air piping systems here