Alfagrog is made of a highly porous material that contains many thousands of tiny pockets in which bacteria can thrive.
This makes it an ideal material for biological filters.
Available in 15kg sacks
Note:-Due to the weight of this item and its low value a shipping charge of £7.50 per bag will be applied to each bag regardless of total value of order.
This charge does not apply to local deliveries.
Alfagrog
