These come in plastic envelope packets and are extremely accurate and field portable.
Each packet contains ample fluid for calibration (about 30 ml).
There is a free sample of these included with each PINPOINT® pH Monitor and PINPOINT® pH Controller.
All electronic pH instruments should be calibrated monthly.
ANS I-Flo (Lily) Set of inflow and outflow glass pipes are specially designed to provide good circulation inside a planted aquarium.
Each piece is individually handcrafted and designed to minimize the appearance of equipment so that the focus is on the aquascape.
Eheim Shaft for Universal Pump 1048, 2222-2324