Key Features Genuine Oase BiOrb replacement part Guard to fit the top of any size BiOrb Central Bubble Tube. Helps to prevent debris from clogging up the tube Also helps to stop fish from swimming down the centre Genuine BiOrb Part Replacement Oase biOrb Bubble Tube Guard. This small cap type end can be easily placed on the end of the central bubble tube to protect the tube. It helps to stop fish swimming down the tube and prevents debris from falling into and clogging up the pole. The guard can be easily placed onto the end of the tube and will fit all Bubble tubes available from biOrb Specifications Diameter :2.8cm Fits: All sizes of biOrb Bubble Tubes
