Biorb MCR light large grey, 15 from sunrise to daylight 7.5 hours of daylight, 15 minutes sunset to night light. This cycle can also be set in the same manner for 10, 12, and 14 hours
Marina Ultra 4-way air control valve allows you to run up to 4 air-driven products. Each valve has flow adjuster which enables you to regulate air output to each devise. The valve is leak-proof and suitable for fresh
Marina T Connector allows to split air coming from the air pump into two even and constant air streams to separate air-driven devises in aquarium. The plastic and non-corrosive connector is safe for use in salt water aq
Marina Check Valve prevents water from siphoning out of the aquarium through the air hose and into the air pump in the event of a power failure or when removing filters and other air-driven accessories from the aqu