Surface Aerators for Ponds and Lakes

At Sterner we offer 2 key types of aerators, both ideally suited to lakes; Floating Aerators and Paddle Wheel Aerators

Floating Aerators

Low profile floating aerators are a solution for lakes and ponds under two metres deep. Producing an attractive, bubbling cauldron effect, floating aerators are ideal for commercial and private applications alike.

Paddle Wheel Aerators

A great 'emergency' solution to your aeration needs. Paddle wheel aerators are quick and easy to install and can easily be moved around to different sites. They are particularly good at providing aeration to fish stock during low Dissolved Oxygen events such as algal blooms or low atmospheric pressure.


  • Paddlewheel Aerator - 2 Paddles 0.75kW Single Phase Paddlewheel Aquacultur Default Title

    Aquacultur Paddlewheel Aerator - 2 Paddles 0.75kW Single Phase

    Numerous aerator comparison tests show that paddle wheel aerators have the highest oxygen transfer per kWh. The easy-to-understand reason for this is that paddle wheel aerators create a directed flow and distribute the enriched water in the body of water. The renewed aeration of pond water that has just been aerated, as is unavoidable with some other types of aerators, is excluded. PWA paddle wheel aerators are in use in thousands of fish farms and shrimp farms around the world. In Europe, these devices are mostly used in fish farms and larger bodies of water (lakes, ponds).Advantages:- effective oxygen enrichment (O2)- degassing (CO2) with high fish stock- flow generation and distribution of the enriched water in the body of water- uncloggable- excellent price/performance ratio- maintenance and repair (if necessary) on site- very long service life (10 years of continuous operation and longer have been reported)Due to the intensive flow generation, these devices are only conditional suitable for small or medium-sized ponds. Even for the smallest devices with 0.49 kW (P2), the body of water should not be smaller than 500 m². If the water is too small or too shallow, there is a risk of embankments being flushed out and sludge being stirred up. The devices are only conditionally suitable for winter use.It is delivered as a kit with assembly instructions. Please note that devices with three-phase motors must be commissioned by a specialist. It is strongly recommended to only operate the device in connectionwith an appropriate motor protection. Please note that operating the device without a motor protection switch will void the motor warranty.

    £942.66

  • Paddlewheel Aerator - 4 Paddles Paddlewheel Aquacultur

    Aquacultur Paddlewheel Aerator - 4 Paddles

    Numerous aerator comparison tests show that paddle wheel aerators have the highest oxygen transfer per kWh. The easy-to-understand reason for this is that paddle wheel aerators create a directed flow and distribute the enriched water in the body of water. The renewed aeration of pond water that has just been aerated, as is unavoidable with some other types of aerators, is excluded. PWA paddle wheel aerators are in use in thousands of fish farms and shrimp farms around the world. In Europe, these devices are mostly used in fish farms and larger bodies of water (lakes, ponds).Advantages:- effective oxygen enrichment (O2)- degassing (CO2) with high fish stock- flow generation and distribution of the enriched water in the body of water- uncloggable- excellent price/performance ratio- maintenance and repair (if necessary) on site- very long service life (10 years of continuous operation and longer have been reported)Due to the intensive flow generation, these devices are only conditional suitable for small or medium-sized ponds. Even for the smallest devices with 0.49 kW (P2), the body of water should not be smaller than 500 m². If the water is too small or too shallow, there is a risk of embankments being flushed out and sludge being stirred up. The devices are only conditionally suitable for winter use.It is delivered as a kit with assembly instructions. Please note that devices with three-phase motors must be commissioned by a specialist. It is strongly recommended to only operate the device in connectionwith an appropriate motor protection. Please note that operating the device without a motor protection switch will void the motor warranty.

    £1,254.94

  • Linn Aqua-Hobby Floating Aerator Pond Aerator Linn 9.5mm (Standard)

    Linn Linn Aqua-Hobby Floating Aerator

    Aqua-Hobby is used thousands of times. This type of unit offers effective aeration at a super price-performance ratio. floating surface aerator for water areas up to 200m² motor over the water surface motor rating 0.15 kW - water supply 48 m³ proven thousands of time unbeatable price-performance ratio

    £956.60 - £1,021.04

  • Linn Aqua-Hobby with submersible motor Pond Aerator Linn 5.5mm

    Linn Linn Aqua-Hobby with submersible motor

    Aqua-Hobby is used thousands of times. This type of unit offers effective aeration at a super price-performance ratio. floating surface aerator for water areas of max. 200 m² with stainless steel submersible motor suitable for winter use available in two sizes 0.15 kW-230V or 0.20kW-400V water supply 45 - 65 m³ proven thousands of times

    £1,280.44 - £1,361.39

  • Paddlewheel Aerator - 2 Paddles 0.49kW Paddlewheel Aquacultur Default Title

    Aquacultur Paddlewheel Aerator - 2 Paddles 0.49kW

    Numerous aerator comparison tests show that paddle wheel aerators have the highest oxygen transfer per kWh. The easy-to-understand reason for this is that paddle wheel aerators create a directed flow and distribute the enriched water in the body of water. The renewed aeration of pond water that has just been aerated, as is unavoidable with some other types of aerators, is excluded. PWA paddle wheel aerators are in use in thousands of fish farms and shrimp farms around the world. In Europe, these devices are mostly used in fish farms and larger bodies of water (lakes, ponds).Advantages:- effective oxygen enrichment (O2)- degassing (CO2) with high fish stock- flow generation and distribution of the enriched water in the body of water- uncloggable- excellent price/performance ratio- maintenance and repair (if necessary) on site- very long service life (10 years of continuous operation and longer have been reported)Due to the intensive flow generation, these devices are only conditional suitable for small or medium-sized ponds. Even for the smallest devices with 0.49 kW (P2), the body of water should not be smaller than 500 m². If the water is too small or too shallow, there is a risk of embankments being flushed out and sludge being stirred up. The devices are only conditionally suitable for winter use.It is delivered as a kit with assembly instructions. Please note that devices with three-phase motors must be commissioned by a specialist. It is strongly recommended to only operate the device in connectionwith an appropriate motor protection. Please note that operating the device without a motor protection switch will void the motor warranty.

    £942.66

  • Paddlewheel Aerator - 2 Paddles 0.75kW 3 Phase Paddlewheel Aquacultur Default Title

    Aquacultur Paddlewheel Aerator - 2 Paddles 0.75kW 3 Phase

    Numerous aerator comparison tests show that paddle wheel aerators have the highest oxygen transfer per kWh. The easy-to-understand reason for this is that paddle wheel aerators create a directed flow and distribute the enriched water in the body of water. The renewed aeration of pond water that has just been aerated, as is unavoidable with some other types of aerators, is excluded. PWA paddle wheel aerators are in use in thousands of fish farms and shrimp farms around the world. In Europe, these devices are mostly used in fish farms and larger bodies of water (lakes, ponds).Advantages:- effective oxygen enrichment (O2)- degassing (CO2) with high fish stock- flow generation and distribution of the enriched water in the body of water- uncloggable- excellent price/performance ratio- maintenance and repair (if necessary) on site- very long service life (10 years of continuous operation and longer have been reported)Due to the intensive flow generation, these devices are only conditional suitable for small or medium-sized ponds. Even for the smallest devices with 0.49 kW (P2), the body of water should not be smaller than 500 m². If the water is too small or too shallow, there is a risk of embankments being flushed out and sludge being stirred up. The devices are only conditionally suitable for winter use.It is delivered as a kit with assembly instructions. Please note that devices with three-phase motors must be commissioned by a specialist. It is strongly recommended to only operate the device in connectionwith an appropriate motor protection. Please note that operating the device without a motor protection switch will void the motor warranty.

    £942.66

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