Product consists of proprietary, moist polymer beads that are non-hazardous and whose exact composition is a trade secret.

• Store it in a cool and dry place.
• Keep away from children and pets.
• Not to be ingested.
• Some slime coat products may permanently foul Purigen and render regeneration difficult.
• Do not reuse if the odor of bleach/chlorine is detectable.
• In case of doubt, soak beads in a small quantity of water and test for residual chlorine with a chlorine test kit.

• Rinse before use.
• Use in a fine mesh (180 micron or less) filter bag such as Seachem’s The Bag.
• For best results, Purigen should be placed to maximize the water flow through it.
• It may be used in a canister filter, media chamber, box filter, or any high-flow area of a trickle filter.
• Each 250 mL treats up to 1,000 L (250 US gallons) for up to six months.
• Exhaustion is indicated by a pronounced discoloration of the beads to dark brown or black.

REGENERATION:

• Soak in a 1:1 bleach:water solution for 24 hours in a non-metallic container in a well ventilated area and away from children.
• Use regular 8.25% hypochlorite household bleach (non-scented, no dyes, do not use a splash-less bleach).
• Rinse well, then soak for 8 hours with a solution containing 4 tablespoons of Prime, or equivalent dechlorinator per cup of water.
• Rinse well.
• For freshwater use, soak for 4 hours with a solution containing 2 tablespoons of buffer per cup of water (Discus Buffer, Neutral Regulator).
• Original color and full activity should now be restored and Purigen is ready for reuse.