Use Twin when the air pump is in use. Especially use Twin when the air pump is set below the level of water.
Features
- Twin, with less cost, is much easier to be set down than the comparative high-cost stone and valve when air pump is in use.
- Plastic Twin prevents from corrosion. Additional, the valve inside is made of silicon and is able to be set in ozonizer.
- Twin, made of high-quality material, can be used for longer than other similar products.
Main Products
aquarium equipment and products