Weighted PondMax air line for running air to a disk diffuser without unsightly floating lines, sold per metre. 15mm internal diameter, expanding to fit 16mm fittings when heated, with a 27mm external diameter.
An XL weighted Reefe air diffuser suited to large dams and koi ponds, passing up to 200 litres of air per minute through a high grade EPDM membrane for fine, long-lasting bubbles. Best run with a PondOne O2 Plus 12000 air pump and heavy duty weighted airline.
Bio balls provide an extremely high surface area for beneficial bacteria to grow, which clean and remove toxins/nutrients from your pond helping to keep water sparkling clear.