Brand new and excessive qualitySeries: 104 SeriesStationary Ring: CeramicRotary Ring: CarbonSecondary Seal: NBRSpring: Stainless steelFit for Shaft Diameter: 12/15/18/20/25mm(0.47/0.59/0.71/0.79/0.98in)Opreating Temperature: -20°C~+100°COpreating Pressure: ≤0.6MPaSpeed: ≤5m/sQuantity: 10Pcs/packApplication: Clean water pump,In-line pump and total commercial pumpNotice:1. The real shade of the thing could also be slightly different from the pictures proven at the website brought on by many points such as brightness of your visual display unit and light-weight brightness.2. Please enable slight handbook dimension deviation for the data. Thank for your understanding.3. 1cm=0.39''.Package Included: 10x 104 Series Mechanical Shaft Seal