Maintain your pond’s ecosystem with an OASE Bitron UV clarifier that eliminates algae and harmful bacteria. Highly efficient OASE Bitron UV clarifiers have an inspection window for easy monitoring. OASE Bitron UV clarifiers are perfect for cleaning large ponds with capacities of up to 110,000 litres. Want to create a stunning pond display? Browse the latest range of Pontec Pondocompact pond pumps that provide a consistent water flow to fountains.