Grodan Stonewool is a proven hydroponics growing medium preferred by garden enthusiasts everywhere. This 36" x 8" x 3" Delta Expert Gro-Slab is perfect for "blocking on" smaller stonewool plugs and blocks to accommodate the final stages of plant growth. This single Delta Slab features vertically packed fibers for quick drainage and comes in a UV-resistant plastic poly sleeve to minimize algae formation. Grodan stonewool is known for its quality, consistency and performance.
This site uses Google Analytics which is one of the most widespread and trusted analytics solution on the web for helping us to understand how you use the site and ways that we can improve your experience. These cookies may track things such as how long you spend on the site and the pages that you visit so we can continue to produce engaging content.For more information on Google Analytics cookies, see the official Google Analytics page.We also use social media buttons and/or plugins on this site that allow you to connect with social network in various ways. For these to work, the social networks may set cookies through our site which may be used to enhance your profile on their site, or contribute to other purposes outlined in their respective privacy policies.