For sale APEX DOS, DDR Sensors and 1link cable

The kit has not been used beyond initial calibration. I bought it brand new. I upgraded it to RO fittings. I made dosing containers that work with aftermarket sensors and a 1 link cable. Everything is operational and basically new open box.

$275 shipped. PayPal.

$250 cash and pickup in Tampa Bay.

If you pick up you will also receive a full gallon of ESV alkalinity and 3/4 gallon of calcium. 1/4 less due to spilling the jug.