Oakton (WD-35634-30) Waterproof pH Tester +0.01 pH Accuracy; ATC Deluxe TDS Calibration Kit W/O Meter expect roughly 50 gallons of

expect roughly 50 gallons of ultra-pure water before the resin is exhausted and needs replacement

or point-of-entry applications requiring dual-stage filtration with sediment

not prone to bacterial attack Purity: Will not impart taste

Built with the same industrial-grade materials used in municipal water systems

ensuring brine seal is properly seated to prevent permeate bypass

Oakton (WD-35634-30) Waterproof pH Tester +0.01 pH Accuracy; ATC Deluxe TDS Calibration Kit W/O Meter expect roughly 50 gallons ofOakton Professional Water Testing Waterproof pH Tester WD 35634 30 Laboratory grade 0. 01 pH accuracy in a pocket sized waterproof instrument with replaceable double junction electrode and automatic temperature compensation IP67 Waterproof 0. 01 pH Accuracy Replaceable Sensor ATC WHY IT WORKS Built for field professionals who need precision in any environment High Precision Measurement 0. 01 pH accuracy meets ASTM and EPA test procedure requirements.