Hydro Flow™ Tube Clamps use a "U" shaped plastic clamp supported by a anchor nail to secure tubing were you want it. Match support to tube size. Hydro Flow™ Support Hooks are a great way to mount 1/2" or 3/4" tubing to buckets or trays by simply installing the narrow side of the hook to the tray or bucket. The tube will rest in the larger hook. Sold in case quantities only.