Stauff SPAL 8088.9 PP R DPAL AS M W12 Manual workplace systems (MPS) H1722441 121200 DAVH201945G2 1254463 blank filter Element H1722441 121200 DAVH201945G2 1254463 H1226594 10120M PA161790 1245565 9mm Polypropylene W12 Cover Plate Hex Head Bolt Weld Plate