Water Absorbing Filter for Slip Tank Have you replaced yours recently? Now's the time. Half price. Details here --> https://www.amazon.ca/Goldenrod-250-496-5-Element-W-Water-Absorbing/dp/B0002YQSR8/ref=sr_1_3?keywords=goldenrod+496-5&qid=1575430855&s=lawn-garden&sr=1-3-catcorr One new filter. $20.