Fish Tank Undergravel Filter UF-32P
Undergravel filter systems are biological aquarium filters that utilise your gravel as your filtration medium. The entire gravel bed becomes a filter medium for hosting the bacteria needed to breakdown fish waste, making it a very compact, efficient and effective filter.
How does an undergravel filtration system work?
- The plates assemble together and sit underneath the gravel.
- The uplift tube(s) connect to the plates and rise up to the water surface.
- The filter system is run using either a traditional air pump or power-head water pump. (not included)
- Depending on the type of fish you are keeping, uplift tubes can be fitted with simple air stones that provide slower water current, or powerheads for stronger flow.
| Specification | Details |
|---|---|
| Model | UF-32P |
| Dimensions | 47″ x 12″ |
| Filter Type | Undergravel |
| Filter Medium | Gravel bed |
FAQ
Can this filter be used with a standard gravel bed?
Yes, this filter is designed to work with a standard gravel bed. The plates sit beneath the gravel, and the gravel itself acts as the biological filtration medium.
What type of pump is required to operate this filter?
A traditional air pump or a power-head water pump is required. The pump is not included with the filter.
Can I adjust the water flow strength?
Yes, you can adjust the water flow by using air stones with the uplift tubes for slower current or by using a power-head pump for stronger flow depending on your fish species.

Joseph Kerr –
The filter works well with my 47-inch tank. It’s easy to set up and the gravel stays clean. My fish seem more active and the water looks clearer after a few weeks. I like how compact it is and how it doesn’t take up much space.
Anthony Nash –
Installed it with my existing gravel and noticed a difference in water clarity within a week. The flow is adjustable and works well with my community fish. A solid choice for a budget-friendly filtration system.
Melanie North –
I’ve used this filter for over three months and haven’t had any issues. The plates fit perfectly, and the uplift tubes stay stable. My tank has been very stable with no algae buildup.