Sponge balls for flushing fish out of hoses, pipes and pumps after a pumping session. Ideal for visual indicator of water speed. Can also be used for cleaning the system.
Recommended speed is 1.5-4 m/s.
Standard sizes suitable for hose/pipes with the following dimensions: 2.5″, 4″, 6″, 8″, 10″ and 12″.
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