Colombo Multi Test Pond Test Kit
 
This great pond test kit from Colombo provides accurate test readings for the following water parameters:
 
pH - Acidity (40 tests).
GH - General Hardness (25 tests).
KH - Carbonate Hardness (25 tests).
NO2 - Nitrite (40 tests).
NO3 - Nitrate (40 tests).
NH3 - Ammonia (40 tests).
PO4 - Phosphate (40 tests).
 
The kit is contained in a convenient plastic case to keep everything safe and includes test tubes, instruction card and also a form for recording results. You can also use the Colombo test strips for quick indications.