A wonderful technical innovation from Oase, these Filtral pond filters are used all over the UK and Europe to clean your pond of the worst bits of debris, and cleanse the water quality of ammonia for a healthier environment for your fish.
Available in 3 different sizes to suit a range of ponds, these Filtrals are all-in-one units, featuring several stages of mechanical and biological filtration, a UV clarifier for algae, and a pump to power it all, all in the same unit.
This compact design means the whole thing can operate unnoticed at the bottom of your pond, unless you choose to attach the fountain head and extension, turning your otherwise boring water return system into a beautiful water feature instead.
Sitting at the bottom of your pond, the Filtral draws in dirty water through a strainer case to protect the impellor from larger particulates, and then passed it through a UVC. This part of the filter shines powerful UV light onto the water, causing free floating algae particles to fuse together in larger clumps. This means that when it passed through the biomedia stage of the filter, the algae is collected along with the ammonia particles, and is broken down into Nitrites and then Nitrates, clearing your pond of green water, dangerous chemicals and leaving you with clean, healthy water for your fish – brilliant!