Browning 4L390 Belt 319848-301 and aluminum spring cage for

and aluminum spring cage for long-term durability in harsh environments

it ensures an airtight seal at the discharge or suction port

ensuring balanced static pressure across the ductwork

eliminating the need for extra elbows and potential leak points

Can this plug be used for both heating and cooling units

Browning 4L390 Belt 319848-301 and aluminum spring cage forThe Browning 4L390 Belt is a heavy duty fractional horsepower (FHP) V belt designed for reliable power transmission in light duty HVACR applications. Engineered with a 1 2" top width and a 39" outside diameter, this 4L section V belt features a classic wrapped construction that excels in small diameter sheaves where flexibility is critical. The specialized cover provides smooth, quiet operation while maintaining superior resistance to heat and oil,