Quick view sku: 02317 Leybold RUTA WAU 251 / D 65 B / G Pumping System Leybold RUTA WAU 251 / D 65 B / G Pumping System Complete vacuum system with Trivac D65b and WAU 251 booster mounted. Usually RUTA vacuum systems are combinations of Roots vacuum pumps of the type WA, WS and RA or WAU and WSU with... View Details Compare