Astrovac/Vacumaid central vacuum bags are made of cloth material and are replaced when 3/4 full, providing a hygienic way to clean without releasing allergens back into the home’s air. They help improve indoor air quality by trapping fine particles that a portable vacuum might recirculate.

The SVB brand of bags are very good quality and are as good as the genuine ones.  The pleated cardboard allows the bag to fit many different types intake pipes in central vacuum machines. This is a fit-all type of bag.