Separate the blue floss from the plastic backing (it is glued on) and remove the carbon inside.
Create a cardboard template using the plastic backing for future filter cutouts.
Place FilterFirst against the backing, ensuring the looser weave side faces outward and the denser weave side aligns with the backing.
For enhanced clarity, position our Polishing Pad behind the FilterFirst.
Use 3"x4" fine mesh bags filled halfway with our Activated Carbon and place them on the right side of the filter