The Hanna Instruments HI70478 replacement PCA tubing kit is intended for use between the pump and bottle in the maintenance and operation of a Hanna dosing pump (sold separately). The plastic valve assembly is corrosion resistant.
Hanna Instruments manufactures analytical instrumentation and supplies, including pH meters, electrodes, chemical reagents, and buffer solutions. The company, founded in 1978 and headquartered in Woonsocket, RI, meets International Organization for Standardization (ISO) standard 9001.