Allegro SpanBak Back Support, XX Large (49" to 54") 7930 10495 Components: Large flywheel for extra HE80 0446 Components: Large flywheel for extra cooling and longer life · ASME safety valves · Pressure gauge · Tank shut off valve · Tank drain valve automatically drains liquid from air receiver · Intake filter silencer · Belt tightening system pulls engine straight to ensure constant belt alignment · Hour meter displays the number of hours compressor has been in operation · Dual control allows the electric compressor to be operated in start stop mode or continuous run · Low oil shutdown shuts unit down when oil falls below adequate levels · Air cooled after cooler removes up tp 65% fo moisture and drops temperature within 10 degrees of ambient Outlet: 3 8" Female Quick Coupler Spanbak features a two part closing design in breathable spandex backed with rubber grip webbing to help prevent ride up Polyethylene plastic stays provide support and strength