Proline WAVE Manual Soap Dispenser, 1 L, 4.9 x 4.6 x 9.2, White, 15/CartonThe ultrasonically sealed and pump mechanisms prevent the ingress of air into the during use to help prevent product contamination and ensure ‘fresh’ product is dispensed every time.The air-tight cartridges are designed to collapse to minimize product waste and the fixed product dose delivers the exact amount required, controlling usage and reducing waste.Unique locking mechanism helps prevent unauthorized access, pilferage and product contamination.