15 Gallon Flo Fast Container Natural 15503 stackable tanks systems Coupler Kit Inlet Size (in) 30150 R Coupler Kit Inlet Size (in) 3 4 Inlet Thread Gender Female Inlet Thread Type BSPP Maximum Air Pressure (psi) 50 Maximum Cycle Rate (CPM) 400 Maximum Fluid Pressure (MPa) 0 375 Air Inlet Thread Gender Female Air Inlet Thread Type NPT Application Industrial Compatible Material Grease Fluid Inlet Type Slotted Fluid Outlet Size (in) 1 4 Fluid Outlet Thread Gender Female Fluid Outlet Thread Type NPT Includes Mini Fireball 50:1 225 Pump Dimensions: 14 This container has a built in handle on the bottom making it easier to grip and control when transporting