Oakton (WD-35653-10) TDS 447 Pouches (300 PPM) 20-Box Phosphate1429 Built-in 1/4" gauge and sample

Built-in 1/4" gauge and sample ports on inlet and outlet for differential pressure monitoring and water quality sampling

ideal for pre-filtration in RO and whole-house systems

} The Fleck 60108 Upper Piston Assembly is an OEM replacement component for Fleck 9500 series control valves

while the clear acrylic body allows visual confirmation of flow and water quality

⚙️ Molded Mounting Bracket

Oakton (WD-35653-10) TDS 447 Pouches (300 PPM) 20-Box Phosphate1429 Built-in 1/4" gauge and sampleThe Oakton WD 35653 10 TDS 447 Pouches deliver factory calibrated 300 PPM total dissolved solids solution in single use pouches, ready for immediate use with handheld TDS meters in the field or lab. Each box contains 20 individually sealed pouches standardized against NIST traceable materials with 1% accuracy at 25C. SPECIFICATIONS Calibration Standard Overview TDS Concentration 300 PPM Premixed and ready to use Accuracy 1% At 25C reference temp