Pargro stonewool blocks are available in a number of sizes to suit all types of plants. Measuring 6 in x 6 in x  4 in, the Jumbo is a particularly good choice of block size for an ebb and flow system because it is 2 in shorter than the Biggie. All blocks with holes fit 1.5” starter plugs.

Pargro is Grodan’s generic value product line, saving you money while providing you the same quality clean, hygienic, and uniform Grodan product. The Pargro product line averages 14% drier than Cultilene® Comfort Blocks™, making it the driest, value-priced stonewool available.

Note: This item is for commercial use and has no retail wrapping or labeling.