25 FT Air Conditioning Copper Hose Hose Extension, 1/4 and 1/2 Inch Thickened Insulation Cotton with Nuts and Other Accessories Fit for Mini Split Air Conditioner
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Free shipping to the US for a limited time
Free Returns
30 days worry-free return.
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One year warranty
Key Features
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Heavy-Duty Leak-Proof Copper: The core tubing is manufactured from thickened, high-grade copper designed to resist corrosion, cracking, and high-pressure stress. Paired with structural brass nuts that offer extreme hardness, it ensures a reliable, leak-free mechanical joint.
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Advanced Thermal Insulation: Pre-sheathed in extra-thick, anti-aging insulation cotton that provides excellent thermal retention and shock absorption. (Note: The insulation layer is designed to withstand operating temperatures up to 80°C / 176°F).
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Toolless Parallel Bundling: Both the low-pressure (suction) and high-pressure (liquid) lines can be routed cleanly together. The pre-fabricated design eliminates the need for manual on-site welding, fitting perfectly into systems requiring 1/4" and 1/2" port configurations.
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Complete Installation Bundle: Includes all essential wall finishing accessories, a flexible drain line, and structural electrical cabling to streamline your installation workflow from the outdoor condenser to the indoor air handler.
Fitment & Compatibility Guide
Pre-Purchase Notice: Please cross-reference your mini-split air conditioner or heat pump manual to confirm that the system’s service ports require 1/4-inch and 1/2-inch line sizing.
Official Kit Component Specifications
| Main Components | Total Length / Dimension | Connector / Line Sizing | Function |
| Copper Tubing Hose Extension | 25 Feet (approx. 7.6 meters) | 1/4 Inch (Liquid) & 1/2 Inch (Suction) | Dual-Line Refrigerant Transfer |
| Flexible Condensate Drain Hose | ~5.58 Feet (1.7 meters) | Standard Utility Diameter | Wastewater Removal |
| Interconnecting Electrical Cable | 25 Feet (approx. 7.6 meters) | Heavy-Duty Multi-Core | System Power & Signal Control |
Product Specifications
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Part Type: Full-Assembly Ductless Mini-Split Line Set & Installation Kit
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Tubing Material: Thickened Refrigeration-Grade Copper & Brass
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Insulation Material: High-Density Shock-Absorbing Thermal Cotton
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Maximum Insulation Temperature: 80°C (176°F)
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Condition: 100% Brand New
Package Includes
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1 × 25FT Insulated Copper Tubing Assembly (1/4" & 1/2" Lines)
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1 × 5.58FT Flexible Condensate Drain Hose
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1 × 25FT Interconnecting Electrical Cable
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2 × Non-Adhesive Decorative Wrapping Tapes
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2 × Structural Wall Filler Putty Blocks
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2 × Decorative Wall Caps
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1 × Protective Wall Sleeve Cylinder
Important Mechanical & Installation Notes
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Professional HVAC Certification Advised: Working with high-pressure refrigerant lines, performing decay vacuum hold tests, and making main electrical connections involves strict environmental and regional electrical codes. Professional installation by a licensed HVAC technician is highly recommended.
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Manage Line Bends Carefully: When uncoiling and routing the 25-foot line set through wall passages, maintain a gradual bending radius. Avoid sharp, abrupt turns to prevent crimping the copper core, which restricts refrigerant flow and strains the compressor.
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Seal Structural Penetrations: Utilize the provided wall sleeve cylinder, filler putty, and decorative caps to completely seal the exterior wall opening. This prevents moisture infiltration, pests, and draft leaks from entering the building envelope.
To ensure a faster and secure delivery, we choose FedEx, USPS, UPS, DHL Ground/Air shipping service. Available shipping methods are vary from different type of products and delivery destination. The majority in stock products and orders are going to be shipped the same day or within 1 business day. After which its delivery details can be tracked with the tracking number we email you. For custom or made to order products’ shipping time varies as they may have to be manufactured, painted, embroidered or assembled.
For more information, please check the following tips:
- Oversized products must ship by truck freight or LTL which is different from other ground shipping methods. Please noted that oversized products are required inspections and a signature service. Freight Shipping Information
- We offer free shipping service for 47 sates in domestics. HI, PR, AK, Guam, Virgin Islands, APOs are excluded from free shipping areas. You will be charged extra shipping fee for orders’ destinations that are not 47 free shipping states.
- "Free Shipping" applies only to orders shipped within the continental United States.
DISCLAIMER
In order to provide all our valued customers with the most up to date and accurate compatibility information, LABWORKAUTO is continuously implementing real-time updates to our line store. Due to the immediate nature of these updates, the correction of any errors or omissions might happen at any time without prior notice. This information may include but not limited to pricing, availability, suggested use, fitment, compatibility and warranties. LABWORKAUTO is not responsible for any additional labor cost, charge, loss or damage incurred as a result of correct or incorrect information, reference or products purchase from LABWORKAUTO. While we are working to avoid any errors or omissions that may appear on LABWORKAUTO website, we reserve the rights to cancel any undeliverable orders based on inaccurate information.
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RETURN
If you are not completely satisfied with your purchase, we will be happy to accept a return for a refund or exchange on products in new/unused condition within 30 days of delivery. All authorized returns must be unused and in their original condition, including all items and components that were included in the original package. Items being returned must not have been disassembled, mounted, modified, or damaged due to incorrect installation or user error. LABWORKAUTO.com will not be held responsible for installation or labor expenses, towing expenses, additional repair expenses, or rental car expenses caused by the use of wrong or defective parts during installation.We provide a limited warranty of 90 days for defective products from the date the product is received by the original purchaser or installer, unless otherwise specified at the time of purchase.
For each of our product warranties offered above, the following provisions apply:
The warranty is limited only to the original purchaser and is non-transferable.
Under NO circumstances will our liability exceed the amount of the original sale.
Each warranty does not cover any labor costs or incidental, indirect, special or consequential damages such as, but not limited to, physical injuries or property damage, loss of time, loss of use of the vehicle, inconvenience, air freight charges, rental vehicle charges, towing charges or accommodations resulting from a defect in or failure of the part.
A prepaid shipping label will be issued for all returns due to warranty claim.
The warranty does not cover lost or stolen packages. Because the customer is the shipper, he/she is the only one who can file any lost claim with the shipping company. Therefore, the claim must be coordinated and processed through the shipping company by the customer.