Petzlifeworld Aquarium Fish Tank DIY Auto Water Repleniser Bottle Cap | Can Be Used with Any Bottle | Suitable for Open Rimless Tank Thickness Upto 10MM | Automatic Water Refiller

When you are on a business trip or traveling, use our water compensator to avoid water shortage in your fish tank, aquarium tank, tortoise tank, or other tanks. To use it, you just need an ordinary 1-2L water bottle. Screw the compensator to the bottle, then stick it to the tank. No wiring or power supply required. When the water level drops to reveal the shorter tube, the water in the bottle automatically flows into the tank due to pressure difference. You can cut the tube into the length according to the water level you want. Each compensator comes with 3 replaceable slots, suitable for 4 kinds of tank thickness: 4mm, 6mm, 8mm, and 10mm. For other thickness, you need to prepare extra gasket. For large tank or long time leave, you can increase water supply by using multiple water compensators. Only 35 mm in length, width and height, little space required. Package includes: 1* Water Compensator, 3* Thickness Adjustment Slots, 1* Silicone Tube (Can be cut into 2), 1* Instructions, 1* Adapter.

• 🌟🌟【HOW IT WORKS】--- When the water level drops to reveal the shorter tube, the water in the bottle automatically flows into the tank due to pressure difference.
• 🌟🌟【SCREW FREE】--- no damage to the tanks. Made of corrosion-resistant ABS material, which is also usable in saltwater. The length of the tubing (manually cut) allows you to adjust the water level.
• 🌟🌟【SUITS UPTO 10MM】---Suitable for tanks with 3-10mm /0.12-0.39in wall thickness. Note: Incompatible with rimmed tanks and curved fish tanks; and tanks with 3mm/0.12in or 5mm/0.2in thickness wall need to use the self-adhesive gasket (included).
• 🌟🌟【A MUST NEED GADEGET DURING VACATION】---A reliable gadget during business trips or travel. Compatible with fish tank, tortoise tank, planted aquarium, saltwater aquarium, etc. For tanks longer than 40cm/16inch, it is recommended to use 2 refillers together.
• 🌟🌟【GREAT FOR NANO TANKS】--- It Use with the principle of differential pressure to automatically refill water, simple and practical. You need to prepare 0.5-1.5L (16.9-50.7 FL Oz) any plastic water bottles