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

Key Features

• 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.

• 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).

• 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.

• 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

Product Specifications

• Part Type: Full-Assembly Ductless Mini-Split Line Set & Installation Kit

• Tubing Material: Thickened Refrigeration-Grade Copper & Brass

• Insulation Material: High-Density Shock-Absorbing Thermal Cotton

• Maximum Insulation Temperature: 80°C (176°F)

• Condition: 100% Brand New

Package Includes

• 1 × 25FT Insulated Copper Tubing Assembly (1/4" & 1/2" Lines)

• 1 × 5.58FT Flexible Condensate Drain Hose

• 1 × 25FT Interconnecting Electrical Cable

• 2 × Non-Adhesive Decorative Wrapping Tapes

• 2 × Structural Wall Filler Putty Blocks

• 2 × Decorative Wall Caps

• 1 × Protective Wall Sleeve Cylinder

Important Mechanical & Installation Notes

• 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.

• 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.

• 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.