From £9.99
ebay.co.uk
- £6.99
Safe Home 12-in-1 Drinking Water Test Kit DIY Testing For Hardness, Copper, Nitrate, Fluoride, Iron, and More City Taps or Well Water 10-Strips Issue
- From £5.99
NT Labs Narrow PH Test
pond-planet.co.uk
- From £15.99
VIVOSUN Digital PH and TDS Meter Kits, 0.01pH High Accuracy Pen Type PH Meter 2% Readout Accuracy 3-in-1 TDS EC Temperature Meter For Hydroponics, Po
- From £9.95
Sensafe 480025 Iron Water Test Kit - 25 Tests
filtersfast.com
- From £8.95
Lineco PH Testing Pen
- From £6.99
Thames & Kosmos Global Water Quality Testing Kit
- £4.00
Premium Digital Ph Meter - Wide 0 00-14 00 Ph Range Accurate Water
- £5.89
NT Labs Aquarium Lab PH 6-7.6 Test Kit
- £96.60
Bacteria Test Kit - Kinesiology - Bioresonance - Homeopathy - 50 Test
- From £37.19
Waterworks Bacteria Growth Check
diy.com
- From £9.99
Hardys PH Meter Tester Pen Digital Electronic Hydroponics Aquarium Water Test Kit UK
- £85.17
Bacteria Testing Kit - Kinesiology Test Kit - Homeopathic Test Kit 50
- From £28.95
Its 481199 Complete Home Water Quality Test Kit
- £16.95
Essentials Lab Ph Control Kit 250ml & Ph Test Kit & 3ml Pipette
- From £121.85
Milwaukee Instruments MW102 PH and Temperature Meter
- From £39.99
PH & Temperature 2-in-1 Continuous Monitor Meter W/Backlight Replaceable Electrode
dhgate.com