Custom Cones USA Fast Fill 121 Replacement Cartridge, 98mm Cone Algaecides protecting your plants from negative

protecting your plants from negative effects of intense light and heat

by setting the grow lights on specific time intervals

Water resistant construction

With a high concentration of soluble potash and silica

Cloning with these racks allows you to maximize your indoor grow room space

Custom Cones USA Fast Fill 121 Replacement Cartridge, 98mm Cone Algaecides protecting your plants from negativeFast Fill Makes Pre Roll Filling Simple & Easy Wether you're looking to buy extra cartridges to preload your cones, or you're just wanting the ability to pick and choose, Custom Cones has exactly what you need. What makes the Fast Fit 121 great, is that the base units are the same for both the Fast Fit 55 & 21. That means, if you decided to start with the 55, you could easily upgrade by just purchasing 121 cartridges! Or vice versa, say you purchased