Part Number:y546si7v9g Product Dimensions:7 x 6 x 6 cm; 90 Grams Style:Submersible Item Package Quantity:1 Batteries included?:No Batteries Required?:No Item Weight:90 g Specifications: Motor RPM:5000RPM Driver size:Dia.27.6 x Height 37.9 (mm) Pump head size:Dia. 31.7 x Height 20.1(mm) Pump tube size(IDxOD) :2.5*4.7mm Flow direction: you can control the flow direction by the positive and negative connect Feature: Silent work Suitable for aquarium, chemicals, liquids, dosing additives It is very easy take apart and clean, so there is gap between motor and pump.just pull out and push in is ok Package included : 1 * 12V DC DIY Dosing pump Peristaltic dosing Head About this item Dimensions Driver size: 32 x height 23 (mm); pump head size: diameter 54 x height 46 mm (mm); mounting hole: 47 mm. Specification Engine speed: 5000rpm; driver size: 27.6 x height 37.9 (mm); Pump head size: Diameter 31.7 x Height 20.1 (mm); Pump hose size (IDxOD): 2.5 x 4.7mm. Flow direction You can control the flow direction through the positive and negative Connect Silent Work. Easy to clean Snap in design is very easy to remove and replace. Suitable for aquariums, chemicals, liquids, dosing additives. Quality GuaranteeIn every link of the manufacturing process, the quality is strictly checked, aiming to provide consumers with high quality products. If you have any questions about our products, please contact us. We will be very happy to answer your questions and solve your problems. See more product details Dimensions Driver size: 32 x height 23 (mm); pump head size: diameter 54 x height 46 mm (mm); mounting hole: 47 mm. Specification Engine speed: 5000rpm; driver size: 27.6 x height 37.9 (mm); Pump head size: Diameter 31.7 x Height 20.1 (mm); Pump hose size (IDxOD): 2.5 x 4.7mm. Flow direction You can control the flow direction through the positive and negative Connect Silent Work. Easy to clean Snap in design is very easy to remove and replace. Suitable for aquariums, chemicals, liquids, dosing additives. Quality GuaranteeIn every link of the manufacturing process, the quality is strictly checked, aiming to provide consumers with high quality products. If you have any questions about our products, please contact us. We will be very happy to answer your questions and solve your problems.