PUMP HOTSY HM3540R.3, 3.5 @ 4000, 1850 RPM Pacific Bay Equipment Sale! from $850.00 Qty. Add to Cart This item is currently on backorder but you can still purchase it now and we'll ship as soon as more become available. HM.3 Series: Belt Drive 3.5 GPM 4000 PSI 9.5 HP 1850 RPM 24mm R Right shaft