Description
Dense CPF Series of Biochemical Filtration Cotton
Replacement wool for CPF pond filter (per set)
SUNSUN CPF Bio Sponge Replacement Set for SG Ponds
These dense biochemical sponges are the consumable heart of the SUNSUN CPF pressurised pond filter range, and keeping a fresh set on hand matters more here than people expect. In Singapore’s year-round warmth, pond bioloads run high and beneficial bacteria colonies work hard, so the foam gradually clogs and breaks down. A replacement set restores both mechanical trapping of debris and the surface area your biofilter needs to process ammonia and nitrite.
When you swap sponges, never rinse or replace the whole set in one go under tap water; the chloramine in our supply kills the bacterial film you depend on. Stagger replacement, rinse old media in dechlorinated or tank water, and your pond stays cycled. For outdoor koi and goldfish setups exposed to monsoon runoff, checking the foam after heavy rain helps you stay ahead of cloudiness.
Match flow and media correctly with our aquarium filter media guide and our pressurised pond filter notes. Find compatible gear in our filtration equipment category.
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