Nutri+ Clear is a final rinse solution for all types of growing systems. Use nutri+ CLEAR one week before harvest or whenever symptoms of fertilizer overdose appear. Nutri+ CLEAR is also very effective to dissolve limestone and built up salts in irrigation equipment such as drippers. All Nutri+ orders over $100.00 will be shipped freight paid. Please order separately to assure the order is over $100.00 and we will deduct the freight from the order. Order other product lines on a separate order and we will ship both orders together.