Botanicare Clearex Salt Leaching Solution CLEAREX GALLON (4/CASE) Clearex is an isotonic drenching solution that unlocks the ionic bond between the nutrient and the soil or soil-less grow substrate, correcting the problem of nutrient salt toxicity and lockout, allowing plants to thrive again.  | Manufacturer's Product Information |  | | 2007 MSRP Each $ | 29.95 | Case Weight | 43.65 LB | Case Dimensions | 13.25 x 11. x 11.25 IN | Case Quantity | 4 | | This item is sold individually. The case size is listed for your convenience for instances where you wish to order in case quantities. — Ships from SS: WA, CA, CO, MI, TN, PA, FL USA. |