Pump Head Repair Kit, Compatible with Grainger Part Number 35U536, 4NA11, 4VZG1, 4VZG2, Compatible with Manufacturer Model Number 45MJH1A1STAA, 85MFH1A1SUG1, 85MJH1A1STG1, 45MFH1A1SUG1, Flow Rate (Maximum) 5 gpd, Includes (2) Connecting Nuts, (2) Cover Screws, (3) Ferrules, #1 Pump Tube, Duckbill, Roller Assembly, Material Polyethylene, Polypropylene, PVC, Santoprene, Stainless Steel, Product Type Pump Head Repair Kit, Tubing Connection Size 1/4 in, Standards Not Applicable