Pay in 4 interest-free payments of $8.47 Learn more
Ships within 48 hours · Estimated delivery Aug 17 - Aug 22
Comes with air stone and 18” tubing
Dual scale
even when the foam is completely saturated
Batteries not included or needed
Response time: To 90% in less than 20 seconds
Hand Counter Booster Pump Comes with air stone andEasily fits in your hand to be thumb operated. The register advances by one digit, up to 9,999, each time the button is pressed. A turn of the side knob resets the register back to zero. Its a great tool for counting algae cells, zooplankton, fry, people, etc.
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