For sale Neptune ATK System With Extra Optical Sensors

ATK system this also includes 2 extra Optical sensors. I had this setup so there was one extra sensor in the sump so it wouldnt overflow i know the ATK has the one sensor and the float but i wanted to be extra secure. Then I used the second sensor in the water rodi tank so if it got too low it would turn off the ATK. - $175 Shipped