Using this dishwasher drain filter assembly is easy. First, turn off the power and water supply to your dishwasher. Then, locate the old drain filter and carefully remove it. Take your new filter assembly and place it in the same spot as the old one. Make sure it fits snugly. Once it's in place, you can turn the power and water back on. When it comes to maintenance, it's a good idea to check the filter regularly for any debris or blockages. If you notice any buildup, you can remove the filter and clean it with warm, soapy water. Let it dry completely before putting it back in the dishwasher. Also, be careful when handling the filter to avoid damaging the parts. And remember, these parts aren't available separately, so take good care of the whole assembly.