Browning 4L530 Belt 326058-757 The 40-micron rating ensures that

The 40-micron rating ensures that even microscopic metallic shavings and carbonized oil deposits are captured before they can enter the compressor crankcase

In a single-try configuration

Calibration involves adjusting the output pressure to match the actual room temperature against the standard 3 to 15 psi scale

this assembly is rated for NAT/LP applications

Browning 4L530 Belt 326058-757 The 40-micron rating ensures thatThe Browning 4L530 Belt is a heavy duty fractional horsepower V belt engineered for demanding HVACR applications requiring reliable power transmission. This 53 inch outside diameter V belt features high modulus synthetic tensile cords that provide superior longitudinal strength while maintaining the flexibility needed for small diameter sheaves. Built with a 4L cross section (1 2" top width), it is an industry standard choice for driving HVAC blower