Unscrew the nozzle cap (1) from the nozzle body (3). This is bestaccomplished while the retaining nut (2) is fastened tightly tothe elbow (5). Next, unscrew the retaining nut (2). Push thenozzle body (3) out of the retaining nut (2). The filter withgasket (4) will come out with the body. To reinstall the nozzle,reverse the above instructions.