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The OB-300S Siphon Overflow Box is an excellent alternative for aquariums without an integrated overflow system. Through a constant and regulated overflow, it effectively directs water rich in organic materials from the surface of the aquarium to the filtration system. Using the OB-300S Siphon Overflow Box in your aquarium can significantly improve water quality.
| Product | L1 | L2 | L3 | W | h | Outlet Drain | Maximum Water Flow Rate |
| mm | mm | mm | mm | mm | mm | LPH | |
| OB-300S | 74 | 70 | 88 | 168 | 195 | 1 x Ø32 | 7000 |
See dimension correspondence with picture no. 2.