Note: Avoid battery short circuit, if AL-AUTO2 is installed outdoors, please equip with sun visor for waterproof. ? First Defense of Whole House? ALTHY AL-PRE-AUTO2 Whole House Pre-Filter, with a 40-micron pore size stainless steel filter, is designed to prevent particles such as sand, rust, limestone and sand from entering your home. ? Prolongs Water Facilities’ Lifespan? Protect your household plumbing, kitchen and bathroom equipment from particulate impurities in municipal water, which can block water taps, shower nozzles, water heaters, washing machines, RO water purifiers and other water-related equipment. ? Full-Automatic Backwashing? AL-PRE-AUTO2 pre-filter can work without manual washing. It has an innovative automatic flushing function, which can save you time, while ensuring that your water filter is automatically flushed regularly. If necessary, you can also press the “Flush” button to flush the system immediately. This will eventually prevent the filter from clogging. ? Monitor Water Pressure? Built-in water pressure gauge, monitoring real-time water pressure at any time, family members can take measures to deal with abnormal water pressure. To ensure the safety of water, general household water pressure range : 0.1MPA-1MPA. ? Featured Material? The 40-micron filter mesh is made of 316L SUS stainless steel, and the head of the main body is made of lead-free brass, and the service life is more than several years. The heavy-duty food-grade transparent housing made in Germany does not contain BPA and has passed the water hammer test of 150,000 cycles and the highest pressure test of 1000 psi. ? Flexible Installation? – The Filter is supplied with G1″ Male, G3/4″ Female and 3/4 Male. And it won’t affect your existing water pressure levels. Water treatment Type: full-automatic Pre-filter. Filter Material: SUS 316L Stainless Steel Mesh. And replace the filter element every 2-4 years according to the water quality. Material: Germany made BPA-free housing, lead-free brass, SUS 316L Stainless Steel filter. Suitable for Water Quality : Municipal Water. Flow rate: 5T/h (5000L/h). Working pressure: 0.1-1.0MPA (1bar-10bar). Applicable water temperature: 0-40 ° C. 1 ALTHY PRE-AUTO2 Prefilter. 1 User’s Manual. 2 G1″ to G3/4″ Connector. 1 PE Sewage pipe.