Pump Head Compatible with Grainger Part Number 35U536 4NA11 4VZG1 4VZG2 Compatible with Manufacturer Model Number 45MFH1A1SUG1 45MJH1A1STAA 85MFH1A1SUG1 85MJH1A1STG1 Flow Rate (Maximum) 5 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