Amazon has the 4-Pack Amazon Basics 10% Povidone Iodine First Aid Antiseptic (4oz bottles, 16oz total) on sale for $7.59 - 5% off with Subscribe & Save (can cancel anytime) = $7.21 with free shipping on $25+ or with Prime. Generic equivilent of Betadine First Aid Solution. ($21 for 16 ounces).