Aquarium Under gravel Filter plate to boilogically clean Fish tanks Sealed edges prevent gravel reaching sub-gravel region Unique design ensures maximum area filtration Cannot work up through gravel Does not require filter wool layer on top Large diameter air lift, which can be fitted either end, can be removed for easy cleaning without disturbing undergravel plate made in several sizes which can be used singly or in multiples will fit standard range of aquaria. For non standard sizes cut and ov
- Filtration