5.5 x 3 x 40"> BIOSLAB from Holland The BIOSLAB has been used by commercial growers in Holland for the last ten years with amazing results.BIOSLABs are molded together with a carbon based inert polymer. There are no fire retarding chemicals or other chemicals that are often found in other foam slabs. BIOSLABS are non toxic to handle or breath. They are pH neutral and unchanged by nutrients. To re-use, simply cut off the old roots and rinse with water. 5.5" x 3" x 40" Availability: Usually ships in 2-3 business days. BIOSLAB from Holland Reusable Foam BIO300

Dutch Irrigation Trays Designed for proper drainage of the BIOSLABDutch Irrigation Trays Designed for proper drainage of the BIOSLAB. Includes drainage fittings. 6 x 4" x 40" Availability: Usually ships in 2-3 business days. Dutch Irrigation Trays Designed for proper drainage of the BIOSLAB BIO305