Pump Head Service Kit Compatible with Grainger Part Number 35U539 35U540 35U545 4NA12 4VZG3 4VZG4 Compatible with Manufacturer Model Number 45MFH2A1SUG1 45MJH2A1STAA 45MJL2A1STAA 85MFH2A1SUG1 45MJH2A3STAA 85MJH2A1STG1 Flow Rate (Maximum) 17 gpd Includes Connecting Nuts Cover Screw B Duckbill Ferrules Pump Tube Roller Assembly Material Polycarbonate Polyethylene Polypropylene Santoprene Stainless Steel Product Type Pump Head Repair Kit Tubing Connection Size 1/4 in