Medo LA120 Air Pump. Medo pumps are uniquely different to other blowers as they dont use diaphragms. Instead, they use engineered & machined, PTFE lined, metal-alloy Linear-shuttles at the heart of their pumps to generate the air-flow. This technology results in higher performance, quieter running & up to double the lifetime when compared to diaphragm blowers. FEED AS MUCH AS YOURE FISH WILL CONSUME WITHIN A FEW MINUTES. 01925 639333 (please leave message on answerphone if no reply). Our company was formed in 1997 and has an excellent reputation in the koi industry. We also manufacture a range of Bottom Drains, Pond Aerators, Aerated Domes and Manifolds plus any number of bespoke items. Thanks For Your Interest. The item “MEDO LA120 Air Pump NO DIAPHRAGMS” is in sale since Friday, November 18, 2016. This item is in the category “Garden & Patio\Ponds & Water Features\Pond & Fountain Fittings & Pump Parts”. The seller is “alt-aquatics” and is located in Warrington. This item can be shipped to United Kingdom.