Choosing the right 3/4 inch copper tubing is essential for reliable refrigeration and air conditioning installations. This guide reviews high-quality, seamless copper tubes in 3/4″ OD by 0.687″ ID, available in coil form and various lengths, all meeting ASTM B280 standards. We highlight performance, durability, and installation considerations to help professionals and DIYers select tubing that maximizes efficiency and lifespan in traditional and modern setups.
| Product | Brand | Length | Dimensions | Notes |
|---|---|---|---|---|
| GOORY Copper Tubing 50 Ft | GOORY | 50 ft | 3/4″ OD x 0.687″ ID | Seamless, nitrogen-treated for longevity |
| BELLA BAYS Copper Tubing 50 Ft | BELLA BAYS | 50 ft | 3/4″ OD x 0.687″ ID | UNS C12200, ASTM B280, nitrogen-treated |
| GOORY Copper Tubing 25 Ft | GOORY | 25 ft | 3/4″ OD x 0.687″ ID | Coiled, seamless, treated for oxidation resistance |
| GOORY Copper Tubing 10 Ft | GOORY | 10 ft | 3/4″ OD x 0.687″ ID | Coiled, high thermal performance |
| ELECTRAPICK Copper Tubing 50 Ft | ELECTRAPICK | 50 ft | 3/4″ OD x 11/16″ ID | High-quality C12200 copper, durable |
GOORY 50 Ft Copper Tubing

This 50-foot coil uses a seamless 3/4″ OD x 0.687″ ID profile with a wall thickness of 0.031″ (0.8 mm). It is made from annealed UNS C12200 copper and conforms to ASTM B280. The nitrogen-charged treatment enhances resistance to oxidation and corrosion, helping aging components maintain performance. The tubing is flexible for easier bending and installation while preserving thermal conductivity and durability in HVAC and refrigeration systems.
BELLA BAYS 50 Ft Copper Tubing

Belonging to the 50 ft class, this 3/4″ OD x 0.687″ ID copper tube is seamless and coil-wrapped for easy handling. It uses UNS C12200 copper and adheres to ASTM B280, delivering strong thermal conductivity, corrosion resistance, and reliable durability. The nitrogen-charged treatment helps prevent oxidation and condensation, potentially extending the lifespan of connected HVAC and refrigeration equipment.
GOORY 25 Ft Copper Tubing

This 25-foot coil provides the same 3/4″ OD x 0.687″ ID sizing with a 0.031″ wall thickness. It is seamless and coil-wrapped for simple installation. The tubing is made from annealed UNS C12200 copper and complies with ASTM B280, emphasizing durability and thermal performance. Nitrogen-charged treatment supports long-term resistance to oxidation, making it suitable for repeated cooling cycles and varied climate conditions.
GOORY 10 Ft Copper Tubing

At 10 feet, this coil delivers the same 3/4″ OD x 0.687″ ID dimensions with a 0.131″ (0.8 mm) wall thickness. It is seamless and coil-wrapped, enabling quick deployment in tight installations. The product uses UNS C12200 copper and meets ASTM B280, ensuring dependable thermal performance. Nitrogen charging contributes to longer service life by reducing oxidation and improving resistance to condensation and corrosion.
ELECTRAPICK 50 Ft Copper Tubing

Electrapick offers a 50-foot coil with 3/4″ OD x 11/16″ ID, slightly narrower than some peers. It features a wall thickness of 0.031″ and uses high-quality C12200 copper. The seamless tubing is designed for HVAC and refrigeration applications, delivering solid thermal conductivity, corrosion resistance, and durability. Its smooth surface and reliable manufacturing support straightforward bending and fitting during installation.
ICS Industries 100 Ft Copper Tubing

ICS Industries provides a longer option with 100 feet of 3/4″ OD copper tubing. It is described as Refrigeration ACR Soft Copper Tube and Seamless in construction, aligning with typical HVAC system needs for longer runs or multiple connections. The material is UNS C12200 copper, offering reliable thermal performance and durability for refrigeration and air conditioning applications. This option suits installers seeking extended coil lengths without frequent splicing.
Buying Guide: Key Purchase Considerations
- Material and standards: Look for UNS C12200 copper and ASTM B280 compliance for consistent quality, corrosion resistance, and thermal efficiency.
- Length options: Choose lengths that minimize joints in your system. Coiled 50 ft or longer often reduces the need for multiple fittings, while shorter lengths can simplify routing in tight spaces.
- Wall thickness and tolerances: A wall thickness around 0.031″ (0.8 mm) balances strength and flexibility. Thicker walls may resist pressure better but are less flexible for bending.
- Oxidation protection: Nitrogen-charged treatment helps prevent oxidation and impurities buildup, potentially extending system life and reliability.
- Size accuracy: Confirm OD and ID are precise to match your fittings, manifolds, and refrigerant charge requirements. The 3/4″ OD x 0.687″ ID standard is widely used in HVAC.
- Coil vs. straight: Coiled tubing is easier to handle and bend, while straight lengths may reduce work needed for precise routing in some installations.
- Compatibility: Ensure the tubing material and treatment align with the refrigerant types and compressor specs in your system.
- Durability vs. cost: Higher purity copper and nitrogen treatment add cost but may offer longer service life in demanding environments.
- Brand and warranty: Choose reputable brands with clear specifications and return policies to protect your investment.
In summary, the options above cover a range of lengths and coatings aimed at durable, efficient HVAC and refrigeration performance. When selecting tubing, balance length, flexibility, and oxidation resistance to match your system’s needs and environmental conditions.
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