--- product_id: 43508031 title: "Ductless HVAC Insulated Copper Twin Line Set - AC & HeatPump (25ft 1/4x1/2)" brand: "ductlessaire" price: "€ 416.24" currency: EUR in_stock: true category: "Ductless Aire" url: https://www.desertcart.hr/products/43508031-ductless-hvac-insulated-copper-twin-line-set-ac-and-heatpump store_origin: HR region: Croatia --- # Condensate drain wire for moisture control 3/8" closed-cell PE insulation for max energy savings Pre-flared brass nuts for tool-free install Ductless HVAC Insulated Copper Twin Line Set - AC & HeatPump (25ft 1/4x1/2) **Brand:** ductlessaire **Price:** € 416.24 **Availability:** ✅ In Stock ## Summary > ❄️ Stay cool, save energy, and install like a pro! ## Quick Answers - **What is this?** Ductless HVAC Insulated Copper Twin Line Set - AC & HeatPump (25ft 1/4x1/2) by ductlessaire - **How much does it cost?** € 416.24 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/43508031-ductless-hvac-insulated-copper-twin-line-set-ac-and-heatpump) ## Best For - ductlessaire enthusiasts ## Why This Product - Trusted ductlessaire brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Moisture Mastery:** Built-in condensate drain wire keeps your system dry and efficient. - • **Durable Copper Core:** ASTM B280 certified copper tubing ensures long-lasting thermal performance. - • **Effortless Installation:** Pre-flared brass nuts eliminate extra fittings and speed up setup. - • **Energy-Smart Insulation:** Thick closed-cell PE shell slashes heat transfer and cuts energy waste. - • **Universal HVAC Compatibility:** Fits most mini split ACs and heat pumps with 1/4" x 1/2" copper tubing. ## Overview The DuctlessAire 25ft Insulated Copper Twin Line Set is a premium HVAC accessory featuring ASTM B280 certified copper tubing with 3/8" closed-cell polyethylene insulation. Designed for mini split AC and heat pump systems, it includes pre-flared brass nuts for quick installation and a condensate drain wire for effective moisture management, ensuring reliable, energy-efficient performance across residential and commercial setups. ## Description Buy Ductless HVAC Insulated Copper Twin Line Set - AC & HeatPump (25ft 1/4x1/2) | Provides insulated copper tubing for AC systems, helping protect refrigerant lines and support mini split installations.: Tubes - desertcart.com ✓ FREE DELIVERY possible on eligible purchases ## Features - COPPER TUBING FOR PERFORMANCE: DuctlessAire’s 25ft Mini Split Line Set features copper tubing designed for air conditioning and heat pump systems. It complies with ASTM B280 standards, ensuring compatibility with air conditioning and refrigeration applications. The copper construction supports efficient thermal performance for heating and cooling, helping to maintain effective system operation over time. - INSULATION FOR ENERGY CONSERVATION: The line set comes with white polyethylene (PE) hard shell insulation that has a 3/8" thickness. Its closed-cell structure helps reduce heat transfer, promoting the HVAC system's efficiency. This insulation also helps minimize condensation, ensuring the system operates effectively in varying environmental conditions while supporting energy conservation efforts. - EASY INSTALLATION WITH PRE-FLARED LINES: This line set includes pre-flared brass nuts on both ends, making installation straightforward. The pre-flared design eliminates the need for additional fittings or tools, ensuring easy and secure connections between the indoor and outdoor units. This feature simplifies the installation process, saving time while maintaining a reliable and secure connection. - CONDENSATE DRAIN WIRE FEATURE: This 25ft line set is equipped with a condensate drain wire that helps manage moisture during system operation. The 25ft length provides ample reach for installation, ensuring proper moisture management across a wider area. This feature directs excess moisture away from the system, supporting smooth operation and helping maintain the system's performance in various weather conditions. - COMPATIBLE WITH HVAC SYSTEMS: The DuctlessAire 25ft Mini Split Line Set is compatible with most mini split air conditioners and heat pump systems. With dimensions of 1/4 x 1/2 inches, it is designed to integrate with a variety of HVAC setups. The copper tubing and insulation ensure reliable operation, making it suitable for different installations, both residential and commercial, to meet varying performance needs. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B01N6U0A3D | | Best Sellers Rank | #2,020,685 in Home & Kitchen ( See Top 100 in Home & Kitchen ) #4,499 in Accessories (Home & Kitchen) | | Brand | DuctlessAire | | Brand Name | DuctlessAire | | Color | Black | | Customer Reviews | 4.6 out of 5 stars 173 Reviews | | Item Dimensions L x W | 300"L x 0.5"W | | Item Length | 300 inches | | Item Weight | 3.97 kg | | Manufacturer | Diversitech | | Material | Copper | | Material Type | Copper | | Outside Diameter | 0.5 inches | | Product Dimensions | 300"L x 0.5"W | | UPC | 627144103284 | | Unit Count | 1 Count | ## Product Details - **Brand:** DuctlessAire - **Color:** Black - **Item Length:** 300 inches - **Item Weight:** 3.97 kg - **Manufacturer:** Diversitech - **Material:** Copper - **Number of Packs:** 1 - **Outside Diameter:** 0.5 inches - **Product Dimensions:** 300"L x 0.5"W - **UPC:** 627144103284 ## Images ![Ductless HVAC Insulated Copper Twin Line Set - AC & HeatPump (25ft 1/4x1/2) - Image 1](https://m.media-amazon.com/images/I/81JtvHDcv+L.jpg) ![Ductless HVAC Insulated Copper Twin Line Set - AC & HeatPump (25ft 1/4x1/2) - Image 2](https://m.media-amazon.com/images/I/71ggdDjZmgL.jpg) ![Ductless HVAC Insulated Copper Twin Line Set - AC & HeatPump (25ft 1/4x1/2) - Image 3](https://m.media-amazon.com/images/I/71VG+RVjblL.jpg) ![Ductless HVAC Insulated Copper Twin Line Set - AC & HeatPump (25ft 1/4x1/2) - Image 4](https://m.media-amazon.com/images/I/71W-EXs+GHL.jpg) ![Ductless HVAC Insulated Copper Twin Line Set - AC & HeatPump (25ft 1/4x1/2) - Image 5](https://m.media-amazon.com/images/I/71vmFoFYyZL.jpg) ## Available Options This product comes in different **Size** options. ## Frequently Bought Together - DuctlessAire Insulated Copper Twin Line Set for Ductless Mini Split Air Conditioner and Heat Pump System - Insulation Copper Pipe Coil Tubing for HVAC, AC & More - Universal Cover (25ft, 1/4 x 1/2 in) - Refrigeration Technologies RT201B Nylog Gasket/Thread Sealant, 30 ml (1 Pack) --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.hr/products/43508031-ductless-hvac-insulated-copper-twin-line-set-ac-and-heatpump](https://www.desertcart.hr/products/43508031-ductless-hvac-insulated-copper-twin-line-set-ac-and-heatpump) --- *Product available on Desertcart Croatia* *Store origin: HR* *Last updated: 2026-10-18*