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Streamline® Line Sets have been an industry leader for decades. We leverage our many years of experience and expertise producing copper tube in every line set we make. From liquid line and suction line handling to unique insulation applications and packaging, every Streamline® Line Set meets our rigorous standards for quality and consistency. With a broad offering of liquid line and suction line diameters, insulation, thicknesses, custom ends and connections plus a wide array of custom options, we’re able to meet our customers most specialized and exacting needs.

Streamline® Line Sets have been an industry leader for decades. We leverage our many years of experience and expertise producing copper tube in every line set we make. From liquid line and suction line handling to unique insulation applications and packaging, every Streamline® Line Set meets our rigorous standards for quality and consistency. With a broad offering of liquid line and suction line diameters, insulation, thicknesses, custom ends and connections plus a wide array of custom options, we’re able to meet our customers most specialized and exacting needs.

Streamline® Line Sets and Suction Lines are now available with our unique Duraguard UV™ Solar Resistant Insulation. This high-quality insulation has a durable, weather-resistant jacket and is designed to handle the toughest solar and weather conditions.

Streamline® Line Sets have been an industry leader for decades. We leverage our many years of experience and expertise producing copper tube in every line set we make. From liquid line and suction line handling to unique insulation applications and packaging, every Streamline® Line Set meets our rigorous standards for quality and consistency. With a broad offering of liquid line and suction line diameters, insulation, thicknesses, custom ends and connections plus a wide array of custom options, we’re able to meet our customers most specialized and exacting needs.

Streamline® Line Sets and Suction Lines are now available with our unique Duraguard UV™ Solar Resistant Insulation. This high-quality insulation has a durable, weather-resistant jacket and is designed to handle the toughest solar and weather conditions.

Diamondback™ refrigeration line sets are designed especially for the ductless and ducted mini and multi-split air conditioning and heat pump system products requiring insulation on both lines and flared connections. The copper tubes are ASTM B280, annealed, refrigerant grade, ACR type, individually insulated with Mitsubishi Electric “twin tube” single piece molded closed cell foam insulation. The figure eight shaped insulation has the highest grade UV resistance available for extended outdoor applications. Line sets come in diameter combinations for Nv and P-Series and CITY MULTI® indoor units and are available in various lengths to meet most requirements for quick, cost effective field installations. All four connections are flared and provided with forged brass flare nuts protected with plastic shipping inserts. In response to the demand for a quick, efficient and economical field method of installation for refrigerant lines to connect ductless mini-split and other split system air c