Stauff FI GE 20SRk W3 Membraamaccumulatoren 24° + O Ring DN19 blank filter Element 24° + O Ring DN19 25S Straight Bulkhead Weld Fitting Size Type: 18L Fitting Body only Steel Zinc Nickel Plated Straight Male Stud Fitting Size Type: 20S 3 4 BSP Taper only Fitting Body Steel