Designed for use with Sealey Model No. PC150BV & PC150BV110V BuilderVac® Vacuum Cleaners. HEPA Filter helps to protect the motor from dirt and debris and makes for easy maintenance of the vacuum. Filters particles down to 1 micron, minimising exposure and safely contains potentially harmful dust particles. HEPA Filter simply pushes onto the filter basket and the motor head assembly re-installed. Suitable for use when dry vacuum cleaning.