Apera Instruments
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Apera Instruments AI1113 pH Calibration Buffer Solution Kit (7.00 4.00) 8 oz. Each pH 7/4 (8 oz)
Regular Price: US$35.99
Special Price US$29.99
Apera Instruments 5052 Seawater Salinity Meter (0-100 ppt 1.5% accuracy) for Aquariums Aquaculture Environmental Monitoring
Regular Price: US$213.99
Special Price US$179.99
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