H-B Instrument brand Enviro-Safe Series uses nontoxic, nonhazardous and fully biodegradable green liquids and unleaded glass and recyclable packaging. The Easy-Read design uses a black liquid against high-contrast yellow-backed glass to reduce reading errors. The Double-Safe design uses PTFE-coated safety glass that does not present a glass hazard or contamination if the thermometer breaks.

Cole-Parmer, (847) 549-7600

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