Tetra APS Air Pumps Model:Service Kit APS 300 Mano Base is open and

Mano Base is open and light

lead and carbonate free

These easy to use pouches make creating your own CO2 (mix with tap water) a complete breeze

they are short (only 15 cm) and the spring system makes them very easy to handle

The Spiral Bubble Counting Diffuser has a 30 mm disc

Tetra APS Air Pumps Model:Service Kit APS 300 Mano Base is open andTetra APS Air Pump The advanced Tetra APS air pump is a quite low noise system thanks to sound absorbing chambers, stable housing and special vibration absorbing rubber feet. Each size APS pump is available in either black or white to fit in with most aquarium fish tank setups. The air pumps highly consistent air flow is due to its powerful high quality long lasting diaphragm. Flow control valve included allowing full control over the output strength