Based out of Riverside, California, JM Flow is an impressive vendor of scientific glass. A popular brand among concentrate connoisseurs, JM Flow is especially known for their immaculate recyclers. Their unique percs, the cross perc and sprinkler perc, provide some of the best filtration found on the market today. JM Flow's consistently high quality and high functionality have made the brand a staple in the modern glass industry. Smoke Cartel is a huge advocate for JM Flow's functional glassware, and we always look forward to seeing what they're concocting next.