Grodan Uni-Slab, 9.5" x 8" x 4" (Case of 16) lighting-systems/kits Nordic Pure 18x18x2 MERV 10

Nordic Pure 18x18x2 MERV 10 Plus Carbon air filters are made of a dual material where the MERV rated material has been fused together with a carbon layer

Microbe Brew

Rate GPH: 50

ZeroTol is a powerful tool to contain pathogens and stop the spread of diseases in your grow

Includes Pre-Filter: Each purchase comes with a complementary pre-filter

Grodan Uni-Slab, 9.5" x 8" x 4" (Case of 16) lighting-systems/kits Nordic Pure 18x18x2 MERV 10Grodan Uni Slab, 9. 5" x 8" x 4" (Case of 16) The Grodan Uni Slab combines all the benefits of our traditional slabs with the versatility of a block. Great stability for any size plant. The UNI SLAB is completely wrapped thus keeping all the roots of your plant safely contained within the slab, protected from light and outside contaminants. Yet it's small enough to be maneuverable, allowing your plants to be spaced as the plant canopy requires. The