Purchase 12 Rye Berry Quart Bag Bundle + 4 or more spore syringes, we'll give you an ET MIX casing soil with filter for free. Or, if you'd rather have the DUNG and STRAW or WORM CASTINGS, we'll give you a $45 discount off of either of those! Whatever your choice, there's big savings here! Just add this to your shopping cart an indicate which casing soil you want for free or discounted. THIS SPECIAL WILL END MARCH 31 2008. WITH PURCHASE OF 12 RYE BERRY QUART JARS + 4 or more spore syringes.