
Impact Resistant 4SD4/28 Borehole Stainless Steel 4-Inch Deep Well Pump. Premium 304 Stainless Steel: Constructed with high-quality 304 stainless steel for superior rust and corrosion resistance. Advanced Mechanical Seal: Features excellent insulation, anti-aging capabilities, and leak-proof performance. Precision Seiko Bearings: Equipped with high-grade bearings for smooth, quiet, and long-lasting operation. High Efficiency & Low Noise: Delivers enhanced pumping power while operating at significantly reduced noise levels. Versatile Applications: Ideal for agricultural irrigation, residential water supply, and industrial water pumping. Deep Well Capability: Designed for efficient water extraction from boreholes and deep wells up to 300m depth. OEM & ODM Support: Accepts OEM and ODM custom orders with logo customization options. 1-Year Warranty: Provides a comprehensive one-year warranty covering mechanical defects.