Construction: Pump Body : Stainless steel AISI 304, complete with threaded ports in compliance with ISO 228/1 Body Back plate : Stainless steel AISI 304 Impellers : Noryl FE1520PW Diffuses : Noryl FE1520PW complete with anti-wear ring Motor Shaft :  Stainless steel EN 10088-3 - 1.4104 Mechanical Seal - Seal : AR-13, Shaft : Ø13mm - Materials : Stationary ring - ceramic, Rotational ring : graphite, Elastomer : NBR WARRANTY PERIOD: ONE YEAR