Amazon offers the Seventh Generation Dish Liquid 25-oz. Bottle 6-Pack in Lavender Floral & Mint (pictured) for $13.93 with free shipping, via the directions below. That's the lowest total price we could find for this quantity by $9. To get this deal:
  1. View the Seventh Generation Dish Liquid 25-oz. Bottle 6-Pack for $17.82
  2. clip the $3 off coupon (located under the product price)
  3. add the item to your cart vis Subscribe & Save for $16.93
  4. proceed to checkout and pay $13.93

It's also available in Free & Clear for $14.95 with free shipping via the steps above. That's a price low for this quantity by $8.

Of note, be sure to cancel Subscribe & Save after your order ships or you'll be billed for subsequent shipments.