Sale is back. Amazon has the 18-Pack Polar Seltzer Water Sampler Variety Pack (12oz Cans) on sale for $9.43. Add 3 to cart for $28.29 - 5% off with Subscribe & Save (can cancel anytime) - $5.82 off multibuy discount = $21.06 with free shipping on $35+ or with Prime. $7.02 per 18-pack. 

• 54 cans total. Flavors include: Strawberry Watermelon, Ginger Lime, Toasted Coconut, Blackberry Mango, Orange Vanilla, and Pink Apple & Lemon.