[NSF/ANSI 372 Certified] The WSP50SL-ARJ-BP sediment water filter is certified lead-free under NSF/ANSI 372 standards, ensuring safer and cleaner water for your home. [Siliphos Add-on] Includes Siliphos to help prevent scale and stop corrosion, greatly extending the life of your plumbing fixtures. It is recommended that the filter be replaced every 6 months to prevent scale from building up. [Bypass Valve Design] iSpring WSP50SL-ARJ-BP provides 4 different operation modes, including filtration mode, shut-off mode, bypass mode, and backwash mode. The bypass valve design can control the water in different channels, making maintenance a breeze. [Jumbo Size and High Flow Rate] It is tailored for complex well water, boasts a 1-gallon capacity—22 times that of standard sediment filters. With a high flow rate of 25 GPM, it excels in managing challenging well water conditions. [Auto Flushing Module]The filter has an integrated auto-flushing module (dual power supply) that saves time on routine maintenance. Auto, semi-auto, and manual on the HD touchscreen are to enable the system to flush on a preset schedule automatically. [Backwashing Feature]Backwashing, which reverses the water flow, is more effective than regular flushing at dislodging and expelling sediment trapped in the filter mesh, resulting in less frequent manual cleaning and filter replacements. [Removes Contaminants] The whole house sediment filter uses a 50-micron filter screen. This means it can filter up to 99% of large particulates such as sediments, dirt, rust, sand, floating objects, and other water pollutants. [Pressure-resistant and Durable Materials] Crafted from 316L food-grade stainless steel, the precision filter mesh in the iSpring WSP50SL-ARJ-BP ensures exceptional durability. The explosion-proof transparent housing offers visibility and convenience. [Tested and Proven] This housing has successfully passed rigorous tests, enduring pressures exceeding 500 psi and withstanding over 100,000 water hammer tests, demonstrating its outstanding resilience and longevity. [Four Different Microns for Replacement Filters] Four microns filter sizes are available for the WSPSL-ARJ/WSPSL-ARJ-BP series. Find the perfect fit for your needs, including the FWSP50SL-ARJ (ASIN: B0CV1DC1VH), FWSP100SL-ARJ (ASIN: B0CV1D2KDF), FWSP200SL-ARJ (ASIN: B0CV1DPXX1), and FWSP500SL-ARJ (ASIN: B0CV1DGFDW) Universal fittings can be easily installed and adaptable to other applications—two types of threads on both ends of connectors: 1-inch MNPT and 3/4-inch FNPT.