2.77 EC Conductivity Standard Solution
C$11.95
Bluelab - 2.77 EC Conductivity Standard Solution available at Valley Indoor.
Rapitest Soil Tester #1609CS
C$35.99
Luster Leaf - Rapitest Soil Tester #1609CS available at Valley Indoor.
Rapitest pH Soil Tester #1612
C$11.99
Luster Leaf - Rapitest pH Soil Tester #1612 available at Valley Indoor.