Hozelock Pond Air Pump 320\nThe Hozelock range of air pumps offer a fully weatherproof, high performance, reliable air supply for small, medium and large fish ponds. The Hozelock Pond Air Pump 320 has a maximum recommended operating depth of 1.2m and delivers an impressive air output of up to 320 litres per hour. Hozelock Air Pumps come complete with everything you need to supply your pond with the vital air it needs. The Air pump 320 includes 10m of air line, 2 air stones and 2 non return valves. Pond aeration is very important for fish health, particularly in densely stocked ponds and in the summer months when oxygen levels decline. Air pumps can also be used to circulate water and help prevent the pond from freezing during winter.\n\nHozelock Pond Air Pump 320\n\nThe Hozelock range of air pumps offer a fully weatherproof, high performance, reliable air supply for small, medium and large fish ponds. The Hozelock Pond Air Pump 320 has a maximum recommended operating depth of 1.2m any