The Salt-Attack Mixer Cup is a 100ml replacement reservoir for the Salt-Attack mixer and spray system, engineered to withstand water pressure up to 120 PSI and designed for spill-free operation in any orientation. The high-strength reservoir attaches to the Salt-Attack mixer body and holds the correct volume of Salt-Attack concentrate for engine flushing on motors up to 90HP (40-60ml) or up to 300HP (80ml, full cup), making it straightforward to measure and apply the correct concentration every time.Salt-Attack Mixer Cup 100ml - Boat Cleaning 100ml Capacity - holds the correct Salt-Attack concentrate volume for engine flushing on motors up to 90HP at half-full and up to 300HP at full 120 PSI Pressure Rating - high-strength construction handles full Australian mains water pressure without deformation or leakage Spill-Free Design - operates in any orientation without spilling, allowing flexible use across all Salt-Attack mixer and spray gun configurations