Great Fermentations is offering $1 shipping site wide as part of and end of the year sale.  There are a few exceptions, use coupon code GOODBYE2018 to get the deal.

$1 Shipping at Great Fermentations

Check sale or product page for current availability & pricing

Also at Great Fermentations: Tapcooler Counter Pressure Bottle Filler! – Hands on Review

More: Recent Great Deals