The RP-600C pump is a 6 roller model with 3/4" inlet and outlet ports. Max RPM is 1200 with max flow of 21.8 GPM and 300 PSI. Use for a large range of spraying, cleaning, and transfer applications. Whether used for low volume, moderate pressure applications such as field or row crops, or for spot spraying around storage bins and fence rows, the Ace roller pump delivers sufficient pressure for reaching the top of orchard trees or penetrating livestock hair.