Making use of rockwool in your next gardening project? Take advantage of all the benefits of rockwool growing using the 15/75 Rockwool tray. Great for a customized hydroponic system, this tray will fit Grodan Rockwool Slabs.
- Fits most Grodan Rockwool slabs up to 7″ in width.
- Measures 40.5″ x 7″ x 4″.