LTWHOME Compatible Bio-Foam Filter Pads Suitable Fit for Tetratec Tetra EX1200 BF (Pack of 12)Pack include: 12pcs Custom designed and manufactured for the Tetratec Tetra EX1200 filtration systems. Traps Particles and Debris. Enhances biological filtration. Provide a better quality of living for your pet with Pet Safe.

Foam size:63mm x 55mm x 40mm

Approx size:150 mm diameter x 10 mm thickness

Pack include: Blue Coarse Foam x 6

Contain 3 replacement foam filter rings

Pack include: 12 pcs

1 inch thick

18 inces(Inner hole Diameter)

Pack include: 12 x White Pre-Filter Foam

100 and 200 Internal Filters

Pay attention to the column of size

Package inclued: 200 PCS Nitrate foam

while the polyester side filters out finer debris and contaminants