Grodan PRO A-OK Starter Plugs 2 in Unwrapped | 30 Sheets, 1,500 Cubes Eyewear - Glasses maximizing light reflectivity crucial for

maximizing light reflectivity crucial for plant growth and energy efficiency

Its compact size fits between pots and reservoirs in a crowded tent

so replacement is scheduled rather than read

Should You Run 62% or 55%

it carries a two-year warranty

Grodan PRO A-OK Starter Plugs 2 in Unwrapped | 30 Sheets, 1,500 Cubes Eyewear - Glasses maximizing light reflectivity crucial forWhat the 50 40 on Grodan A OK Starter Plugs Means Those two numbers are the plug, in millimetres. 50 x 50 x 40 mm, which is 2 x 2 x 1. 6 in. Worth reading carefully, because the depth is 1. 6 in and not 2 in. The footprint is what the size refers to. Sheets come 50 plugs each, and a full case is 30 sheets for 1,500 cubes. Unwrapped means no plastic sleeve around the sheet, so the whole sheet drains as one and the cost per plug drops. Choosing 2 in