This is the 30mL size of the H2Blue eco formula (equal to 3, 10mL bottles), a reagent which can be used to measure the concentration of dissolved H2 gas (mg/L-ppm) in hydrogen-rich water. When the drops are placed into water containing dissolved molecular hydrogen, the blue drops turn clear. One 30mL bottle contains enough reagent to do approximately 150 hydrogen-level measurements. Price per 30mL bottle is 64.95. Includes graduated beaker. Standard shipping for retail orders shipped to US locations is FREE via USPS Priority (1-3 business days typical). Secure order processing is done via Paypal...No Paypal Account is Required.....select "pay with credit card" option at checkout.
INTERNATIONAL SHIPPING: At this time we ship retail orders of H2Blue only to the contiguous 48 US states, Alaska & Hawaii via USPS Priority. Please contact us for orders to international locations.