GrowoniX Booster Pump compatible with EX/GX-Series water filtersThis little pump will raise the input water pressure to 78psi on every GrowoniX reverse osmosis filter up to 600GPDeven if you have only 10psi to start with! Adjustable output pressure, designed for continuous duty, and armed with overheat protection; Built in high pressure cutoff allows for easy use with float valves or faucets. 12000 hours of brush life makes this little pump an industry standard workhorse Works with: EX 100,GX 150 200 HF 300 400 HF