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5% off
TrolMaster
TrolMaster AS-2 CO2 Alarm Station (Audio/Visual) Plus LED Display Indicator

$208.48 ~~$219.45~~
HM Digital
HM Digital Waterproof pH Meter PH-200

$81.90
TrolMaster
TrolMaster ECW-1 RJ12 Waterproof Straight-Through Inline Coupler

$19.95
Sold out

Hanna Instruments
Hanna GroLine Multiparameter Probe HI-1285-7

$141.75
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Hanna Instruments
Hanna GroLine Waterproof EC/TDS Tester HI98318

$71.50
Hanna Instruments
Hanna GroLine Waterproof Hydroponic pH Tester HI98118

$73.50
Milwaukee Instruments
Milwaukee MW806 MAX 4-in-1 pH/EC/TDS/Temp. Combo Meter with ATC

$461.15
HM Digital
HM Digital pH Meter PH-80

$36.50
Gavita
Gavita Master Controller EL3

$711.25
TrolMaster
TrolMaster ECS-500 RJ12 Cable Roll 500ft

$129.68