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Hobby Aqua Control is a Diffuser with safety valve. The integrated check valve protects air pumps against returning water.
Hobby Diffusor Aqua Control
+ integrated safety valve protects membrane pump against backflowing water
+ fine bubbles and robust plastic aerator
+ good workmanship and long service life
+ suitable for fresh and marine water aquaria & garden ponds
+ suitable for all commercial membrane pumps with a 4 / 6 mm air hose connection -