Grotek Final Flush is a fertilizer rinse solution that acts to dissolve excess fertilizer salts that may accumulate over time as a result of regular fertilizer applications.
The 4L size is a special order item that is not typically held in inventory at our distribution centers so lead time may vary. Special order items are non-returnable unless the item is defective within warranty. Please contact our customer service team for more info at +1-855-289-1441 or staffgrowershouse.com
