General description The OSWNKW-05 Whole House Pre-Filter is designed to protect your home from sediment and particulate impurities in municipal water. With a 40-micrometre pore size stainless steel filter, it effectively prevents particles such as sand, rust, and limestone from entering your plumbing and appliances, thereby prolonging their lifespan. Technical specifications Model: OSWNKW-05 Water treatment machine type: Pre-filter Flow rate: 3000 L/H Filter precision: 40 μm Working pressure: 0.1-1.0 MPA (1 bar - 10 bar) Applicable water temperature: 0-40°C Material: Food-grade explosion-proof PC cover, lead-free brass Service life: More than several years Installation Clean the filter elements every 15-30 days. Replace the filter elements every 1-3 years based on water quality. Usage Monitor real-time water pressure with the built-in gauge. For cleaning, simply turn the sewage ball valve to activate the automatic backwash feature, which uses water pressure to clean the filter without