The bridge slot screen produced by our factory is mainly made of stainless steel 304, 304L, 316 and 316L.The bridge slot screen pipe has exactslotsand it’s an ideal well filter with higher strength.Stainless steel bridge filter pipe’s corrosion resistance is stronger, can extend the service life and save the cost.Our bridge slot screen has threaded, welded and flanged connections and can be customized as customer specifications. The customers’ common outer diameters are 146mm, 159mm, 219mm, 273mm, 325mm. https://www.afilterscreen.com/PRODUCT/Wsp/10.html