The FloraFlex FloraClip 2.0 easily transforms your FloraCap from a top-feeding unit into an automated top-feeding system. Now simply clasp the FloraClip over your 1/4'' OD tubing (instead of threading it through the opening) and clip it to your preferred location on the FloraCap. Then sit back and let your FloraCap do the rest! We recommend you use (2) FloraClips per FloraCap. Dishwasher safe, and reusable. BPA and lead-free plastic.