Hydros Control X4 Aquarium Controller PRO Pack - Hydros Skimmer Accessories Particle Size - 3 to

Particle Size - 3 to 3

increasing the rate of phosphate-reduction and denitrification

Neptune's COR uses the latest in Vector Control

Maintaining consistent calcium and alkalinity levels

*Two year warranty pertains to pump only and against manufacturer's defect

Hydros Control X4 Aquarium Controller PRO Pack - Hydros Skimmer Accessories Particle Size - 3 toThe Ultimate Aquarium Monitoring and Control System The HYDROS Control X4 PRO Pack includes two Control devices, the Control XP8 and Control X4. Combine these Controls to create a secure and impressive set up for both saltwater and freshwater aquariums. Connect up to four sensor devices, including temperature sensors, water level sensors, and leak detectors. The device also includes two Drive Ports for powering pumps and solenoids and two Probe Ports