Shurflo 8000-812-288 On Demand Diaphragm Water Pump For Agriculture Spraying and Fluid Transfer, 115VAC, 1.4GPM, 100PSI, Chemical-Resistant Materials, Viton Valve, Self-Priming, Can Run Dry: Amazon.com: Industrial & Scientific
SF-1100-REC-DT Mini-Bulk Chemical Transfer System (EPDM Valves) – Sprayer Depot