standard taper joints fit into reagent bottles with standard taper necks
Constructed with overflow tubes that return directly to reservoir For air intake, overflow cups have hose connection for attaching drying tube; second drying tube provided for use between rubber bulb and reservoir Precision bore tubing permanently marked with individual serial number Durable black ceramic enamel scale Inset shows top configuration Certifications A certificate is provided to indicate instrument traceability to standards provided by NIST™.