Best 7/8 Refrigeration Copper Tubing for HVAC Systems and DIY Projects
Answering the common buyer question: which 7/8 inch copper tubing options deliver reliable performance for HVAC, refrigeration, or DIY cooling projects? This guide highlights five top picks, explains who they’re best for, and offers practical buying guidance. Each product fits standard 7/8″ OD copper tubing needs, with seamless coils and nitrogen-treated durability noted in their specs. Ideal buyers include HVAC pros, DIY enthusiasts upgrading or repairing refrigerant lines, and small shops assembling custom cooling systems.
| Product | Length | Best For |
|---|---|---|
| BELLA BAYS Copper Tubing – 50 ft | 50 ft | Pro projects needing longer runs and easier coil management |
| BELLA BAYS Copper Tubing – 25 ft | 25 ft | Mid-size installations and tighter workspaces |
| BELLA BAYS Copper Tubing – 10 ft | 10 ft | Quick cuts, small repairs, and test runs |
Note: All listed Bella Bays tubes are UNS C12200, ASTM-B280 compliant, seamless coils designed for refrigeration and HVAC use, with nitrogen-charged treatments to improve longevity and resist oxidation. The products vary mostly by length, while maintaining the same core specifications and performance expectations.
BELLA BAYS Copper Tubing – 50 Ft Coil
Specification: Annealed UNS C12200 copper, 7/8″ OD (22.23 mm) and 0.796″ ID (20.23 mm), wall thickness 0.039″ (1.0 mm), 50 ft coil, seamless. The tubing conforms to ASTM-B280 and offers flexibility for various installations. It’s best for professional HVAC contractors handling longer refrigerant runs, or DIYers who need substantial coil lengths for custom configurations.
Best for: Professionals performing longer runs or multi-section installs where fewer joints save time. Limitations: Longer lengths can be heavier to handle for single-person work; consider routing and support needs in tight spaces.
BELLA BAYS Copper Tubing – 25 Ft Coil
Specification: UNS C12200, 7/8″ OD x 0.796″ ID, length 25 ft, seamless coil. Ready-to-use refrigeration copper with good thermal conductivity and corrosion resistance. Nitrogen-charged treatment helps prevent oxidation over time, supporting longer system life.
Best for: Installers seeking a mid-length option for compact runs or trial setups. Limitation: 25 ft coil may require additional fittings or spools for larger layouts.
BELLA BAYS Copper Tubing – 10 Ft Coil
Specification: UNS C12200 copper, 7/8″ OD x 0.796″ ID, 10 ft length, seamless coil, ASTM-B280 compliant. This shorter coil is ideal for quick repairs or small system expansions, with nitrogen treatment aiding longevity.
Best for: Field technicians performing targeted repairs or small-chunk builds. Limitation: Short length means more joints in larger systems, potentially increasing leak risk if not sealed properly.
ELECTRAPICK Copper Tubing – 50 Ft
Dimension: 7/8″ OD x 0.80″ ID, 50 ft, wall thickness 0.039″ (1.0 mm). Made from high-quality C12200 copper, seamless coil with strong corrosion resistance and thermal conductivity. Mentions nitrogen-charged treatment for oxidation resistance. Best for: Projects needing a robust, long coil with reliable heat transfer and easy handling. Limitation: Some users may prefer slightly tighter tolerances for precision line-set work.
GOORY Copper Tubing – 50 Ft
Specification: 7/8″ OD x 0.796″ ID, 50 ft coil, wall thickness 0.039″ (1.0 mm). Annealed UNS C12200 copper, ASTM-B280 compliant, nitrogen-charged treatment to reduce oxidation and condensation. Suitable for varied refrigeration and HVAC applications. Best for: Installers seeking a well-rounded, durable coil for mid-to-large projects. Caution: Ensure adequate support to manage coil weight during installation.
Bison Metals Technologies 50 Ft Coil
Specification: 7/8″ OD x 50 ft, ACR soft copper tubing, ASTM-B280, UNS C12200, manufactured in the USA. Cleaned and capped for protection during shipping and storage. Best for: DIY enthusiasts and pros needing ready-to-use, moderate-length coils with domestic manufacturing provenance. Limitation: Some users may require longer or shorter lengths depending on project scope.
Buying Guide
What matters when selecting 7/8″ refrigeration copper tubing?
- Length and coil type: Choose coil lengths to minimize joints and fit workspace. Longer coils save time on large runs; shorter coils suit tight spaces or quick repairs.
- Material and compliance: Look for UNS C12200 copper, ASTM-B280 compliance, and nitrogen-charged treatments for oxidation resistance and longevity.
- Wall thickness and ID: A 0.039″ wall (1.0 mm) and 0.796″ ID are standard; ensure compatibility with connectors and fittings in your system.
- Flexibility and workability: Annealed copper improves bendability, reduces work hardening, and makes field shaping easier.
- Durability: Corrosion resistance and thermal conductivity are key for refrigeration efficiency and system lifespan.
- Applications: Use in HVAC refrigerant lines, air conditioners, condensers, and DIY cooling projects; consider whether you need a straight coil, coil with pre-cut lengths, or fittings kit.
Frequently Asked Questions
- What does 7/8″ OD mean for tubing?
OD is the outer diameter, typically 7/8 inches for these refrigerant tubes. Inner diameter is about 0.796 inches, which affects flow and fitting compatibility.
- Why is nitrogen charged treatment mentioned?
It helps reduce oxidation and impurities, improving durability and lifespan of the tubing in cooling systems.
- Is 50 ft coil suitable for large installations?
Yes, for longer runs or multi-section layouts, but plan routing and supports to manage coil weight and bending.
- Can I use these tubes for DIY projects?
Yes, these tubes are suitable for DIY HVAC or refrigeration projects, provided you follow proper safety and leak-testing practices.
- What should I consider when choosing between different brands?
Focus on length, coil quality, compliance with ASTM-B280, and whether the nitrogen treatment is included, then compare handling and fit with your fittings kit.
- Are fittings or kits necessary with copper tubing?
For many installations, you’ll need compatible fittings; some listings include fittings options, but many do not. Ensure compatibility with your line-set components.