Grodan A-OK 36-40 (1.5 in x 1.5 in) Plugs, 30 Sheets of 98 Climate & CO2 Timer Royal Gold states the Mendo

Royal Gold states the Mendo Mix out preformed all its competitors

Quest Supply Air Duct Collar for Overhead Style Dehumidifier

5 in starter plug

carbon filters and ventilation equipment

The #3 measures around 1/2 inch and the Coarse is about 1/8 to 1/4 inch

Grodan A-OK 36-40 (1.5 in x 1.5 in) Plugs, 30 Sheets of 98 Climate & CO2 Timer Royal Gold states the MendoA OK Starter Plugs for starting seeds and rooting of cuttings prior to plugging into the larger Gro Blocks. A OK Starter Plugs come labeled with instructions in a shrink wrapped sheet that fits a standard 10 x 20 tray (flat). Note: Item #713020 is supplied without shrink wrap.