Hydro-Stone 20 lbs. Bulk. Low USPS Shipping. Hydrostone Start Price USD 10.95 Current Price USD 10.95 Time Left - Bid Count 0 Buy It Now Price - Reserve Price - Start Time Wednesday, October 15, 2008 End Time Tuesday, January 06, 2009 Location El Cajon, California See more about 'Hydro-Stone 20 lbs. Bulk. Low USPS Shipping. Hydrostone' Description Once again we are breaking down 100 lb. bags of genuine Hydro-Stone gypsum cement into convenient 20 lb. boxes. It is the USPS Flat Rate box filled with at least 20 lbs of hydrostone. Shipping is just $9.80 Priority Mail. Complete instructions and a tip sheet and measuring cup is enclosed in the package including a product data sheet from U S Gypsum, the manufacturer. For uses and detailed directions see www.gypsumsolutions.com We have several boxes all made up and can ship it today. Contact Dave at (619) 316-2772 Place a Bid!