Zip Bag Durable Seams & Corrosive-Proof Zipper 32 cm x 14 cm (19" x 17"). Excellent Choice for Large Filter Media like Pelleted Carbon and/or Biomedia Such as Matrix No Strings or Ties.

• Large Mesh
• Durable Seams
• Corrosive Proof Sipper
• Holds up to 18 Liter of Media
• No Strings or Ties