Gnat Nix! controls gnats at different points of their lifecycle, therefore preventing adult emergence from hatching larvae and deterring females from laying eggs in the growing media. As a result, their lifecycle is interrupted, and its population significantly reduced. Like all Growstone products, Gnat Nix! is made in the USA from 100% recycled glass. — Ships from HF: OR, CA, CO, PA, TX, FL USA. Specifications for Growstone Gnat Nix! 2L Bag hf-GPGC2L: | | EACH Packaged | CASE | PALLET | UPC: | 894854002170 | | | Volume: | 0.14 | 1.67 | | Dimensional Weight: | 1.45 | 17.35 | | Weight (lbs): | 1 | 13.2 | | Approx Length (inches): | 8 | 15 | | Approx Width (inches): | 3 | 24 | | Approx Height (inches): | 10 | 8 | | |