Lay z spa pump impeller And Shaft Bestway This impeller will fit all lay z spa air-jet and hydro jet models. Material: Our Impeller And Shaft is made by plastic, metal and magnets. Product size: 7.3x3.7x1.6cm/2.87x1.45x0.63inch(LxWxH). Replacement part includes rotor, shaft and bearing. Lay Z Spa Pump Impeller And Shaft Bestway Fits All HYDRO JET