The dry disposable filter bag and the reusable filter bag compatible with Stanley 5-6 gallon wet dry vacuum SL18116P, SL18115P, SL18115, SL18116, PCX18406-5B This cost-effective value package gives you 9 disposable filter bags + 2 reusable dry vacuum filters The disposable filter bag and the reusable dry vacuum filter bag picks up daily household debris like dirt, dust, sand effectively, Keeping your home, office, business neat and tidy The special design of the disposable filter bag can avoid debris overflow when the filter bag is removed The reusable filter bag can be rinsed, just rinse it under running water but make sure completely dry them off before using