Hammerhead - 1L
*NEW & IMPROVED*
Before, PK formulas were a disappointment at best… and… at worst… an expensive way to burn your plants!
But now, you can get all the benefits you’ve always wanted from a PK formula…
Hammerhead has been specially designed for use with all hydroponics, sphagnum, and soil growing mediums. Plus, it has been developed for use with any and all hydroponics, aeroponic, drip irrigation, NFT, ebb and flow and continuous liquid feed growing systems.