Oakton (WD-35653-10) TDS 447 Pouch (300 PPM) 20 pouches-box 10 inch x 2.5 inch Filters2636 5" Big Blue polyester cartridge

5" Big Blue polyester cartridge engineered for washable

Most users get 6-12 months of service before needing replacement

Recommended Water Conditions

The Structural BT-1840-AL brine tank is compatible with most residential and light commercial water softener systems requiring an 18-inch diameter footprint

Ensure installation area can accommodate the 24-inch diameter footprint and that floor surfaces can support the combined weight of tank

Oakton (WD-35653-10) TDS 447 Pouch (300 PPM) 20 pouches-box 10 inch x 2.5 inch Filters2636 5" Big Blue polyester cartridgeThe Oakton WD 35653 10 TDS 447 Pouch delivers factory calibrated 300 PPM reference solution in individually sealed pouches for on site meter verification. Each box contains 20 single use pouches standardized against NIST materials with 1% accuracy at 25C. SPECIFICATIONS TDS 447 Calibration Standard TDS Concentration 300 PPM Factory standardized Accuracy 1% At 25C Traceability NIST Certified reference Package Quantity 20 Pouches Single use sealed