Heathrow Scientific 6603-21 Specific Gravity Hydrometer, 2.200 to 2.420, 0.002 subdivisions, 305 mm, 1/pk

Precision Specific Gravity Hydrometers measure the ratio of the mass of a solid or liquid to the mass of an equal volume of distilled water. Each hydrometer has been calibrated for use at 60°F.

We have a 30-day return policy, which means you have 30 days after receiving your item to request a return.

To be eligible for a return, your item must be in the same condition that you received it, unused, and in its original packaging.

* Free Ground shipping is for all online orders over $500 and is inside of the contiguous United States (excluding Hawaii and Alaska).

Free Ground shipping does not apply for demo/used/refurbished/clearance units and any order over 100 lbs of actual or dimensional weight (other exclusions also applies).