The C.R.I. Stainless Steel Series submersible pumps, offered in 4″ and 6″ sizes, are meticulously engineered for the rigorous demands of deep well and borehole pumping, ensuring exceptional efficiency and durability. Designed for versatile applications ranging from residential water supply to heavy-duty industrial use, these pumps feature robust, corrosion-resistant stainless steel construction and are equipped with radial or mixed flow impellers, providing superior head and flow capacities. Each model incorporates a radial bearing to extend operational life and minimize maintenance requirements. Enhanced efficiency and reduced wear are achieved through the inclusion of neck/wear rings on the impeller and casing. Additionally, a built-in check valve prevents backflow and mitigates the risk of water hammering, solidifying their reliability in any setting.