Pump Head Compatible with Grainger Part Number 35U539 35U540 35U545 4NA12 4VZG3 4VZG4 Compatible with Manufacturer Model Number 45MFH2A1SUG1 45MJH2A1STAA 45MJH2A3STAA 45MJL2A1STAA 85MFH2A1SUG1 85MJH2A1STG1 Flow Rate (Maximum) 17 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