Fits True Brew Beer & Wine Filter & Vinamat Filter. Most filters must use 2 pads of the same grade at the same time! These are non-asbestos pads.
Coarse Pads: GF1 pads are considered to be 2-7 micron. In other words almost all particles under 2 microns pass through them. Particles larger than 7 micron are completely filtered out and particles in-between are partially removed. Medium Pads:GF3 pads are considered to be 1-4 micron. In other words almost all particles under 1 micron pass through them. Particles larger than 4 micron are completely filtered out and particles in-between are partially removed. Sterile Pad: GF5 pads are considered to be 0.4-0.6 micron. In other words almost all particles under 0.4 microns pass through them. Particles larger than 0.6 microns are completely filtered out and particles in-between are partially removed.