Pump Head, Compatible with Grainger Part Number 35U542, 35U543, 35U552, 35U553, 4NA13, 4VZG5, 52XH66, Compatible with Manufacturer Model Number 45MJH7A1STAA, 45MJH7A3STAA, 85MFH7A1SUG1, 85MJH7A1STG1, 85MJH7A3STAA, 85MJH7B1STAA, S3007AA101N, Flow Rate (Maximum) 40 gpd, Includes Duckbills, Ferrules, Pump Tube, Material Bronze, Polyethylene, Polypropylene, Santoprene, Product Type Pump Head, Tubing Connection Size 1/4 in, Compatible with Brand Stenner