Friscer Multipurpose Zipper Filter Media Bag (Fine) (45x22cm) API Plastic bio-materials provide only external

Plastic bio-materials provide only external surface area

The test is completed when the water in the test tube

Dissolve almost all of the salt in a clean container already filled with the full volume of RO/DI water at a temperature of 73-77°F / 23-25°C while circulating/stirring the water

length 78mm (3 in

Friscer Multipurpose Zipper Filter Media Bag (Fine) (45x22cm) API Plastic bio-materials provide only externalFriscer Multipurpose Zipper filter media bags are excellent filter media bags with plastic zipper and double seam. Extra stable, highly durable and comfortable to use. Less than 400 Micron mesh for fine filter media. With this filter media bags, it is very simple to accommodate aquarium filter media such as activated carbon, zeolite, bio rings, lava rock, Phosphate remover, sulfur beads other filter media commonly used into aquarium filters, sump, or