Listing is for ( 1 ) : SEACHEM Laboratories Renew 250 ml
Renew is a phosphate free carbon substitute
Renew™ should be used in exactly the same manner as activated carbon.
Use 250 mL for each 120–160 L (30–40 US gallons). For best results, Renew™ should be placed so as to maximize the flow of water through it.
Use in a filter bag such as the Zip Bag™.
