ITEM#: 2541-B618930400
MFR#: B61893-0400
H-B Instrument Durac API ASTM Hydrometers, ASTM Number: 4H, Specific Gravity Range: 29 to 41 deg., Accuracy: +/-0.1 deg. API, Length: 330mm, Increments: 0.1 deg. API, Certifications/Compliance: Traceable to NIST