4 inch Stainless Steel Borehole Pumps with NEMA Standard Oil-filled Motor or Resin Filled Motor, IP68, Class B/ ... upto 35m 4 inch Stainless Steel Borehole Pumps with NEMA Standard Oil-filled Motor or Resin Filled Motor, 4SJ Performance RangeHeadup ... sales conditions). 4 inch Stainless Steel Borehole Pumps with NEMA Standard Oil-filled Motor or Resin Filled Motor, 4SJ