Unlike polarographic DO probes that require conditioning time

and radon-222 contaminants that standard filters cannot address

Includes one (1) filter cartridge and insulator sleeve

Origin: Made in the USA

The dosing pump flow rate is adjustable from 0

GroLine General Purpose Cleaning Solution Sachets, 20 mL (25 pcs.) - HI70061G PH58 Unlike polarographic DO probes thatHI70061G is a high quality cleaning solution designed with hydroponics, aquaponics, and greenhouses in mind. Single use sachets are highly portable, with a small footprint and a lightweight design. They are the perfect accessory for your on the go testing, fitting easily into your pocket or carrying case. Specially formulated for cleaning GroLine electrodes. Single use sachets for convenience. Perfect for use with GroLine testers and portable meters!