Grodan MacroPlug - 50 per Pack - Case of 35 Packs Select Rockwool Type:MacroPlug - Case of 2,000 chlorine dioxide remains intact as

chlorine dioxide remains intact as a dissolved gas in water

daisy chain up to 8 bars together at 120v and 16 bars together at 240v

Machine Washable

Do not change/modify the components or wires that have been soldered at the factory

Pre-mounted

Grodan MacroPlug - 50 per Pack - Case of 35 Packs Select Rockwool Type:MacroPlug - Case of 2,000 chlorine dioxide remains intact asGrodan MacroPlugs MacroPlugs are round, 1. 5 in. with a slit that allows easy insertion of a cutting. These round plugs fit perfectly into our Gro Blocks . For best results with these Macroplugs always insert them in the Grodan Gro Smart tray . The individual cells will make sure that the plugs stay closed around the stem of your cutting. What is Rockwool? Grodan Stonewool (rockwool) is made from molten rock spun into cotton candy like fibers and then