| Replacement tubing for the Rena XP Filters consists of two, 5 foot lengths. These are the original tubes that come with the XP1,2 and 3 but will also fit the XP4. The inner diameter is 16mm and the outer diameter is 21mm. This is approximately 5/8" id by 3/4" od. This tubing is specially formulated for use with the Rena Filstar XP filter system. It does not contain any chemicals that can leech into the tank and cause pollution. The tubing is also formulated with a high silicone content to remain soft and pliable for a longer period of time while not kinking. |
