1/4" x 3/8" x 1/2" 25' Duraguard Mini-Split Copper Line Set

$150.37
- +
In stock
29 Available At My Branch
40 Available At All US Supply Locations
Brand
Duraguard
Part Number
40620250B6C
SKU
2003434
Manufacturer
Mueller Industries
Mueller Duraguard Mini-Split Line Set – 3/8" x 5/8" x 25 Ft – Streamline® 40620250B6C The Mueller Duraguard line set (model 40620250B6C) is a factory-insulated copper tubing assembly used for ductless mini-split air conditioning systems. It includes 25 feet of Type ACR copper tubing—3/8" outside diameter (liquid line) and 5/8" outside diameter (suction line)—produced from UNS C12200 alloy. The tubing is nitrogen-charged and meets ASTM B280 specifications to ensure cleanliness for refrigeration applications. Specifications Line Set Length: 25 ft Liquid Line OD: 3/8 in Suction Line OD: 5/8 in Tubing Material: Seamless copper (UNS C12200), nitrogen-charged Standard Compliance: ASTM B280 Insulation: Pre-applied Duraguard UV™ polyethylene foam, 1/2" wall thickness Operating Pressure: Up to 700 psi Temperature Range: Up to 250°F Refrigerant Compatibility: Suitable for R-410A, R-32, and other high-pressure refrigerants Application: Designed for use in mini-split and ductless HVAC installations Product Features ASTM B280 Copper: Seamless, clean, and oxidation-free interior for direct refrigeration circuit integration Duraguard UV™ Insulation: UV- and weather-resistant polyethylene foam insulation limits heat gain and moisture intrusion Pressure Rated: Supports pressures up to 700 psi for use with modern refrigerants and systems operating under high load Pre-Charged and Capped: Tubing is sealed under nitrogen charge to prevent oxidation during storage and handling Flexible Configuration: Coiled design allows for routing in compact installations without the need for excessive joints or fittings Installation Considerations This product is intended for professional HVAC installation and may require flaring, brazing, or other field-end preparation depending on equipment specifications. Insulation joints must be sealed to maintain vapor barrier integrity. Verify system refrigerant compatibility and observe all local code requirements. Contractor Notes Mueller's Duraguard line set delivers performance in both residential and light commercial ductless installations. The corrosion-resistant copper construction, high-pressure rating, and field-ready insulation reduce labor time and ensure system reliability. Preferred by contractors for retrofits and new system builds where consistent quality is critical.

Specifications

Specifications
Weight 5.350000
Brand Duraguard
Application For use in heating ventilation air conditioning and refrigeration application
Domestic/Import Domestic
Height 33
Length 33
Width 3.5
Finish Black
Insulation Thickness 1/2 in
Item Type Line Sets
Length (Overall) 25'
Manufacturer Part Number 40620250B6C
Material Copper, Plastic
Product Family Tubing
Series 406
Standards ASTM B1003|UL 700 PSI
Sub Type Mini-Split Line Set
Suction Line Size 3/8 in
Warranty 10 Years Limited on Copper Tube/5 Years Limited on Insulation
Item Returns This item can be returned
Features