Made with quality SMS material, this reusable dust bag provides high levels of filtration and protects your motor, preventing dust from entering. We recommend using this in conjunction with a disposable dust bag to provide another level of filtration for your cleaning task. Pacvac approved, genuine spare part. Reusable. Easy to empty. Recommended to use with a disposable dust bag. Packet of 1. Machine compatibility: Thrift. Thrift 650.