4 Corners Organics Pumice - Medium (1/4" - 3/8") Gard’N Clean Turn atmospheric nitrogen into plant-available

Turn atmospheric nitrogen into plant-available ammonia for safeguarding nitrogen levels

Wells and low pressure (below 40 PSI) water sources can benefit greatly from this pump

Built in cooling fan

Super-sharp tapered blade tips for ultimate cutting precision

4 Corners Organics Pumice - Medium (1/4" - 3/8") Gard’N Clean Turn atmospheric nitrogen into plant-availablePumice is formed from volcanic activity and owes it's unique porous structure to the rapid temperature and pressure changes that occur during a volcanic eruption. An excellent soil additive for increasing drainage and aeration, pumice also has a mineral content that is beneficial to plants. Pumice also assists in promoting microbial establishment and growth due to its porous nature. All of the surface area provides living environments for root zone