Name SFIT BE 12 X 20 DR21 WH 8S, .050, .25 Market Segments Water Well Applications Well Casing Systems Product Families Sure-Fit (F480) Product Types Pipe Products Sure-Fit® SW PVC Well Casing Classes DR 21 End Types IB Gasket Types SBR Gasket Lengths 18' 6" Sizing Standards IPS Products Text Sure-Fit® SW PVC Well Casing