Hozelock Air Pump 45lph Code: 1820 Adding oxygen into a fishpond is very important for fish health, particularly in densely stocked ponds and in the summer months when oxygen levels decline. The pumps can be safely left uncovered outdoors to simplify installation. This model delivers 45 litres per minute and 35lpm at a depth of 1m and is supplied with a 100mm air stone, a chrome coated metal manifold with 12 outlets and 5m of air tubing (4mm diameter) as standard. The air stones produces maximum diffusion of the air into the water and avoids the need for multiple air stones making installation easier. Additional airstones can be added to provide oxygen in different areas the pond. 2-year guarantee. Price: £56.16 (Excluding VAT at 17.5%) Quantity: