Grodan Gro-Smart Tray Terracotta Organics Pure Zym is suitable for

Pure Zym is suitable for all substrates

Quick Cal solutions to calibrate pH and conductivity all at once with a single solution

Made in EU

Includes mounting brackets and 8 foot pre-wired 120V cord

pre-amplified pH

Grodan Gro-Smart Tray Terracotta Organics Pure Zym is suitable forGrodan Gro Smart Tray Terracotta 78 Cell Your Grodan Starter plugs, Mini BlocksTM and Gro BlocksTM have finally found a home. This durable Dutch tray has double sided features. Use the 78 cell side to perfectly fit 1. 5" A OK StarterTM plugs or round MacroplugsTM. Use the mesh side for sheets of A OK's, Mini Blocks, or Gro Blocks. The tray fits in a standard 10" x 20" flat and keeps the Grodan elevated from the bottom of the flat. Easily sanitize as