A Rotary Screw Compressor Hose is a heavy-duty, reinforced flexible conduit designed to transport hot oil and high-pressure compressed air between the air-end, separator tank, and cooler. Because screw compressors generate significant heat ($80$°C to $110$°C) and vibration, these hoses must be far more resilient than standard hydraulic or air lines.Using the wrong hose can lead to "swelling," where the inner liner degrades and sends rubber fragments into the high-precision bearings of the air-end, potentially causing a catastrophic failure.