The UltraZap pond filtration combos bundle a UV sterilizer and a gravity biofilter into one setup: the UV clears algae and microorganisms while the biofilter controls ammonia and nitrite. Six pairings cover ponds from 2 500 to 12 000 litres, and each is also offered with bio balls included for ready-to-run biological media.

Good to know:
– 8W UV + 5L biofilter — with or without bio balls (up to 2 500L)
– 15W UV + 10L biofilter — with or without bio balls (up to 5 000L)
– 15W UV + 25L biofilter — with or without bio balls (up to 12 000L)
– Also suited to large aquarium and fish tank koi systems