Interpet Aqua Air Pump Ap Mini Interpet AP Mini Air Pump For aquariums up to 18" long or 1 x 1" airstone Pump Specifications No. of outlets 1 60 litres per hour Complete with fitted 3 pin plug 1 Year Manufacturer Backed Guarantee Recommended for use with Airstone, Longstones and Airwalls All air powered filters e.g. sponge filters, box filters and under gravel filters All air ornaments e.g. Bubble device, water whee, star fish etc.