Sera Air set M sis. 4 m letkun

The middle size of the air set. According to the shop's own product data it includes 4 metres of air hose.

What the set is for: use with the sera air plus air pumps. The manufacturer groups the air sets together with the sera internal filter L internal filters and the air 110 plus, 275 R plus and 550 R plus pumps.

Size classes: the range has three sizes, S, M and L. In the manufacturer's list they are distinguished by the size letter alone, so in practice the choice comes down to hose length and how far the pump stands from the tank.