API NITRA-ZORB SIZE 50 - 1 Pack Corner Filters which is difficult to produce

which is difficult to produce and package

E4 copper 3mg

Comes with 4 different sizes: 3/8″

It is ideal for all filtration products and has an exceptionally long life

API NITRA-ZORB SIZE 50 - 1 Pack Corner Filters which is difficult to produceContains one (1) API NITRA ZORB SIZE 50 1 Count cartridge Removes toxins that can be harmful to fish and lead to cloudy water Removes debris, ammonia, nitrites & nitrates from aquarium water. Easy to use pre dosed pouch fits most canister filters on the market, for use in freshwater and saltwater aquariums Use when testing indicates the presence of phosphate or silicate, replace every 2 months.