Relaxweex HVAC Copper Tubing Extension Kit 4×4m (1/4",3/8",1/2",5/8") with PET Jacketed Strips & Built-in Bender

Relaxweex 4pcs 4 m conditioning copper tubing pipe extension kit provides four color-coded PET-covered copper strips and a built-in tubing bender to cut, bend, and protect air-conditioning lines on site.

This kit combines long, flexible copper tubing extensions with protective PET jackets and a simple bending guide so HVAC technicians and DIY installers can adapt line lengths without sending work off site. Each strip is about 4 meters (13 feet) long and comes in one of four common diameters (1/4", 3/8", 1/2", 5/8") so you can match the pipe to the system and avoid size mistakes. The included bender functionality helps keep tubing smooth and reduces the risk of kinks during installation, while color-coded sleeves speed identification when you’re working under time pressure.

How will this kit fit into typical air-conditioning installations?

The Relaxweex kit is designed for extensions, on-site repairs, and custom routing of refrigerant lines. Because the tubing arrives in long continuous strips and with a bend-ready profile, it lets you measure, cut, and lay the line exactly where you need it.

• Four common diameters to match system ports and fittings.
• 4 m length per strip for fewer joins and cleaner runs.
• Built-in bending guide reduces need for extra tools.
• Color-coded jackets for fast size checks on the job.

What materials and protections are included to ensure durability?

Each copper tube is wrapped in a PET (polyethylene terephthalate) jacket that shields the metal from abrasion, UV exposure, and rough handling during installation. The jacket also helps maintain insulation integrity and prevents small dents that can impede refrigerant flow.

• PET outer cover for abrasion and weather resistance.
• Pure copper core for good thermal conductivity and corrosion resistance.
• Reinforced ends for secure fitting to valves and flare nuts.
• Color coding reduces cross-connection risk between lines.

How easy is it to cut, bend, and join these tubes on site?

The kit is built for field work: measure the required length, use a standard tubing cutter to trim, and employ the integrated bending guide to shape the line. This minimizes the need to return to a workshop and cuts installation time, while helping preserve the tube’s internal diameter for steady refrigerant flow.

• On-site cutting compatible with common tubing cutters.
• Integrated bending support prevents kinks during tight radii.
• Long 4 m strips reduce the number of joints and potential leak points.
• Works with standard flare fittings and compression connections.

Will this kit save time and reduce mistakes during installations?

Yes — the combination of long lengths, color-coded diameters, and a built-in bending aid simplifies planning and speeds up routing. Installers spend less time measuring multiple short pieces and less effort redoing bent or damaged lines.

• Color coding prevents size mix-ups during fast-paced jobs.
• Fewer joints mean faster leak testing and commissioning.
• Durable PET jacket lowers scrap from handling damage.
• One kit covers four common refrigerant line sizes for versatility.

Who is this for: HVAC technicians, refrigeration installers, service contractors, and experienced DIYers who need a flexible, on-site solution for copper refrigerant line extensions. If you routinely work on split systems, mini-splits, or refrigeration units and want long, protected lengths plus a simple bending aid in one kit, the Relaxweex 4pcs 4 m copper tubing extension set is built to reduce trips, cut installation time, and keep lines properly formed and protected.