Answer: For 50-foot runs of 1 inch copper tubing, look for products that specify seamless UNS C12200 or Type L copper, are annealed for easy bending, and follow ASTM B280 or B88 standards. These selections are ideal for HVAC, refrigeration, and DIY installations. The top picks below target buyers such as HVAC technicians, DIY enthusiasts, and refrigeration installers seeking durable, flexible coils with long service life. A quick comparison table is provided to help you choose quickly.
| Product | OD × ID | Length | Best For |
|---|---|---|---|
| GOORY Copper Tubing 3/4″ OD x 50 FT | 3/4″ (OD) x 0.687″ ID | 50 ft | General HVAC and refrigeration installations |
| BELLA BAYS Copper Tubing 3/4″ OD x 50 ft | 3/4″ (OD) x 0.687″ ID | 50 ft | Durable, easy to shape for coils |
| GOORY Copper Tubing 1/2″ OD x 50 FT | 1/2″ (OD) x 0.445″ ID | 50 ft | Smaller refrigerant lines and DIY tweaks |
| BELLA BAYS Copper Tubing 5/8″ OD x 50 ft | 5/8″ (OD) x 0.562″ ID | 50 ft | Medium-line applications and compact coils |
| BELLA BAYS Copper Tubing 1/2″ OD x 50 ft | 1/2″ (OD) x 0.445″ ID | 50 ft | Budget-friendly, flexible for tight spaces |
GOORY Copper Tubing 3/4″ OD x 50 FT

Spec: Annealed UNS C12200 seamless copper, 3/4″ OD, 0.687″ ID, 0.031″ wall, 50 ft. The tubing meets ASTM-B280 and offers good flexibility for installation. It is nitrogen-filled to reduce impurities and resist oxidation, supporting longer service life in HVAC systems and refrigeration. Best for: professional and DIY projects needing a reliable, easy-to-form coil. Limitation: larger OD may require compatible fittings and extra bending care.
BELLA BAYS Copper Tubing 3/4″ OD x 50 ft

Spec: Annealed UNS C12200, 3/4″ OD x 0.687″ ID, wall thickness 0.8 mm, 50 ft coil. Conforms to ASTM-B280, offering good thermal conductivity, corrosion resistance, and durability. Nitrogen charged and pressure-tested to minimize oxidation. Best for: installations requiring steady flow and long-lasting performance in HVAC systems. Limitation: slightly heavier than thinner-walled variants, which can affect ease of handling in tight spaces.
GOORY Copper Tubing 1/2″ OD x 50 FT

Spec: Annealed UNS C12200 seamless copper, 1/2″ OD x 0.445″ ID, 0.028″ wall, 50 ft. Flexible and easy to work with, adheres to ASTM-B280. Nitrogen-filled to reduce impurities and resist condensation. Best for: smaller refrigerant lines and DIY projects where space is limited. Limitation: smaller diameter may not suit higher-flow requirements.
BELLA BAYS Copper Tubing 5/8″ OD x 50 ft

Spec: UNS C12200, 5/8″ OD x 0.562″ ID, wall 0.031″ (0.8 mm), seamless coil, 50 ft. Meets ASTM-B280; nitrogen charged to minimize oxidation. Best for: mid-range refrigerant lines and versatile HVAC tasks. Limitation: slightly thicker walls than some 1/2″ variants may require careful bending in tight installations.
BELLA BAYS Copper Tubing 1/2″ OD x 50 ft

Spec: UNS C12200, 1/2″ OD x 0.445″ ID, 0.028″ wall, 50 ft coil. ASTM-B280 compliant; nitrogen charged to prevent oxidation and improve longevity. Best for: budget-friendly projects and flexible layouts in smaller appliances. Limitation: smaller diameter limits maximum flow for larger systems.
Buying Guide
- What tube size should I choose? – Select OD that matches your fittings and system design. Larger diameters support higher flow but are stiffer to install in tight spaces.
- Is UNS C12200 or ASTM B280 important? – Yes. They indicate high-purity copper with good thermal conductivity and corrosion resistance, ensuring long-term reliability in HVAC and refrigeration.
- What about tubing length? – 50 ft coils are common for many installations. If you need longer runs, confirm the supplier can provide continuous or compatible splices without performance loss.
- Should I prefer nitrogen-filled tubes? – Nitrogen filling reduces oxidation and impurities during manufacturing, extending service life in damp environments and with refrigerants.
- Which diameter is best for DIY projects? – 1/2″ and 5/8″ OD options are easier to maneuver in small spaces; 3/4″ is robust for mid-to-large systems.
- What are common compatibility considerations? – Ensure fittings, refrigerants, and brazing or soldering methods align with the tubing material and wall thickness.
FAQ
- Q: Can I use these 50 ft copper tubes for water supply? A: They are designed for refrigeration and HVAC, not drinking water; use potable-grade tubing for water lines.
- Q: Do these tubes come with pre-installed fittings? A: The listed items are coils without fittings; plan for compatible connectors and brazing equipment.
- Q: How flexible is the 3/4″ tube compared to 1/2″? A: The 3/4″ tube is stiffer but still bendable with proper tools; plan bends carefully to avoid kinking.
- Q: Are all tubes tested for leaks? A: Tubes are nitrogen-charged and pressure-tested during production, but site testing is still recommended after installation.
- Q: Which tube is best for DIY beginners? A: The 1/2″ OD options offer a balance of ease of handling and compatibility with common fittings.
- Q: Do these tubes meet safety standards? A: Yes, they reference ASTM-B280 and related standards common in HVAC and refrigeration.