Introducing the 3 Pack Sealed Bag Set intended for VacuMaid, Astrovac & Valet by POWERTEC. Whether installed on your wall mounted shop vac or centralized vacuum, capturing small debris and fine dust particles is essential to maintaining a clean, safe and healthy working environment. With these 3 layer nonwoven paper filter style bags, no dirt will escape. Made with high quality paper material, these dust capturing bags offer 3 layers of high efficiency filtration that screen out more than 98.7% of particulates. Tear resistant and tough, these easy to install bags are durable for long term use, and are extremely easy to replace once full. They effectively prevent bag blow out and seal up nice and tight. Simply slide the cardboard/ rubber seal over the bag inlet fitting and it's back to perfectly sealed dust capturing. Replacement Bag Compatible with: HPB1, HPB1PK, AT100, AT120, ATQ300, GV30, GV30PRO, GV50, GV50PRO, H1P, H2, HV101, MK20, MK23, MK25, MK28, MK35, MK-IP, MK-XXIIIBP, P70, P73, P75, P80, SR36, SR38, SR52H, SR760.