The certified non-woven material removes larger particles of impurities from the water, but neither completely removes trace elements, nor NO3 and PO4, which are essential in marine aquaristics. It works perfectly with protein skimmers. Because the roll is 20 cm (7.87 inch) wide and as much as 40 m (1574.8 inch) long, it lasts longer than the competitive devices.Key features: High performance - up to 3 months of continuous operation Easy plug & play installation Special high quality material to keep water crystal clear and maintain parameters Smart functionality (management from the Smart Reef app, and soon also access through the Social Reef app) Integrated media basket Easy roll replacement Roll dimensions - width: 20 cm (7.87 inch), length: 40 m (1574.8 inch) Connection for 40 mm (1.57 inch) tubing Individually adjustable flow rate - maximum 11000 L/hour Recommended aquarium size from 300-1500 L All you need to control is the free Smart Reef app, which you can install on your phone (Android, IOS) or operate from your browser. Simply pair the Smart roller M with your account on the app to enjoy a range of Smart functionalities:Smart functionalities: free user-friendly Smart Reef app for Android, IOS or computer (browser-based operation) creation and modification of a flexible dosing schedule information on how long the roll is enough setting the rate of scrolling alerts when the roll is blocked delayed start settings Additional features: simple setup and easy service small size allows use even in small sumps modern design height-adjustable legs and hanging option drain equipped with an element for additional filtration media TECHNICAL SPECIFICATIONSDimensions and weight of the device:width 37,5 cm / 15 inchheight 48 cm / 19 inchdepth 12 cm / 4.6 inchweight 3,12 kgMedia space in the basket:9 cm x 14,8 cm x 4,6 cm / 3.5 in x 6 in x 2 inPower supply specification:Power supply voltage 100-230 VAC 50/60 Hz (AC-DC adapter included)Power consumption 0,5-5 W maxThe devices are CE certifiedBox contents: device Smart roller M Replacement mat basket offset Liquid level sensor (50 cm / 20 inch) hanger sensor holder closing the drain spare empty roll fixture Flat knob 5x25 mm / 0.2 x 0.1 inch instruction manual power supply Neodymium magnet for resetting the device Smart Reef +Reef Factory offers a variety of Smart products that are designed for convenient and intelligent marine aquarium management. Build your own system based on smart devices and control them from a single app!