Current Culture 1-Site Multi-Mod Expansion Kit for Under Current XL13 Lid Option:One Site - with One 8" Net Pot 5% Water Soluble Magnesium

5% Water Soluble Magnesium

Both packages are built equally with the highest quality components and perform exactly the same

Silicate increases dry weight in many plant varieties

High Nitrogen and Phosphate For Stonger Stems and Healthier

Ammonium Nitrate

Current Culture 1-Site Multi-Mod Expansion Kit for Under Current XL13 Lid Option:One Site - with One 8" Net Pot 5% Water Soluble Magnesium1 Site Expansion Kit Is Great For Replacing a Single 13 Gallon Growth Module For Your Under Current XL13. All Expansion Kits Now Include: Multi Mod Growth Module, Aeration Manifold Fittings, and Air Hose Whips. NOTE: This multi mod expansion kit is designed to be used to expand the new 2019 multi mod under current systems. This expansion kit will NOT work with the classic systems. If you are looking to expand an old classic under current systems,