Feature:

\u25cfSuitable for fresh water， salt water fish tank.
\u25cfTo fully exert biological filtration capacity of law porous filter ring.
\u25cfThis product is mix made of the softy active carbon and ceramic.
\u25cfChemically stable， fully in line with the original micro-organisms living chemical environment.
\u25cfHigh permeability， which can be aerobic nitrification and anaerobic denitrification， to make the water more stable， is the best biological filter material.

Product Attributes:

Material: Active carbon and ceramic
Color: White
Quantity: 1 Pcs
Weight: about 500g in bag
Outer diameter : 1.2cm\/0.47inch
Inside diameter : 0.4cm\/0.16inch
Height : 1.1cm\/0.43inch

Package Include:

1 x BOYU CR-500 Aquarium Bio Ceramic Ring

Note:

1.Due to the light and screen difference， the item's color may be slightly different from the pictures. Please understand. Make sure you don't mind before you bid.
2.Please allow 1-5mm differences due to manual measurement.