JBL Water Test Refill, For freshwater aquariums, ProAquaTest CO2-pH Permanent Refill, 2 units

Description

Advanced water test series: Reclosable reagents for use with ProAquaTest CO2-pH Permanent, Ideally suited for permanent direct measurement of the optimum pH value and carbon dioxide content
Simple and safe control of water values in freshwater aquariums
Long-term test for fertilisation control: Put reagent into the long-term test device and attach it to the glass pane with suction cups in the aquarium, compare the reagent colour with the colour scale sticker and read off the value
Display of pH value from 6.4 to 7.8 and CO2 content
Contents: 2x JBL Water Test Refill for JBL ProAquaTest CO2-pH Permanent