MD central vacuum bags for open-top models. It fits all older MD Manufacturing models that when you lift the lid off the canister, you can see the dirt in open-top bag. Fits the models, Silent Master S2, MD E2. MD B2, all Air Force models, Silent Master S5 and many more.
It is elastic around the top and fits into a cloth bag that supports it.
In 2018, MD came out with a sealed vacuum bag that is enclosed and does not have an open top where you can see the dirt.
These bags are Hyper-Flo bags which means they filter the air better and less dirt can get through the material so it is a cleaner air design. It has 5 layers to the bags and will allow your MD central vac to work better and maintain your suction no matter how much dirt you put inside.
This package part number is 720HF-2 and has replaced the part number 720H-5 and the part number 721H-5. There is two per package.