Our collection brings together high-performance fine bubble air diffusers from Dryden Aqua and advanced dissolved oxygen and environmental monitoring equipment from OxyGuard.
Whether you're improving aeration efficiency in a wastewater treatment plant, monitoring dissolved oxygen levels in treatment tanks or measuring environmental conditions in aquatic systems, GroAqua offers specialist equipment to support your operational requirements.
Hand-held oxygen and temperature meter with NFC tags and Bluetooth technology for easy data transfer to Cobália.
The Polaris C DO meter is a high-performance, low-cost and almost maintenance-free meter for measuring dissolved oxygen and temperature. The meter is sturdy, easy to use and has an extensive longevity making it ideal for harsh conditions.
Polaris C DO can store up to 2500 complete data sets, including time and date stamps. The logged data is stored in the meter or can be transferred to Cobália using Bluetooth.Scan the Cobália NFC tag of the tank and all data will be uploaded to your “digital farm”. Tank specific data assigned to the tags will be stored in Cobália for analyses on temporal variations, multivariable analyses on performance and for the generation of graphs.
The meter has a built-in self-check of all hardware, automatic barometric pressure compensation and a notably short response time. With this meter, you get the high-quality associated with OxyGuard technology and a product that will serve you well for many years.
Instruction Manual
The Dryden Aqua Air Diffuser is a semi-flexible, high-efficiency fine bubble air diffuser available in 9 different lengths, depending on the air through-put required . It provides oxygen transfer rates of up to 5kg/kw, 10m3/h of air and 1 kg of O2/h. Its semi-flexible construction with its own internal ballast will stay on the bottom of tank or pond without the need to be anchored to the floor.
The Dryden Aqua Air Diffuser combines excellent performance with cost effectiveness for aeration, oxidation and biological treatment.
Dryden Aqua Air Diffuser Key Features
Semi-flexible, tubular construction
Self weighted
Available in 9 lengths from 0.3 – 3m.
Air handling capacity from 1 – 10m3/hr
Less than 0.2 Bar (3 psi) pressure differential
Oxygen transfer efficiency up to 5 kg/kwhr
Resistant to calcification
Easy to clean and maintain
Robust and long-lasting (typical lifespan is 5 – 10 yrs)
Built in non-return valve
Stainless steel and plastic construction
Can be used with Air, N2, CO2
Oxygen Transfer Performance
Surface aerators waste a huge amount of kinetic energy throwing the water into the air, transfer coefficient is 1 kg to 2 kg of oxygen per kW. Membrane diffusers are more efficient at 2 kg to 3 kg of oxygen per kW. The Dryden Aqua diffuser at over 5 kg is therefore the most efficient fine bubble diffuser available and is ideal for retrofit applications as a simple drop in product for tanks and ponds in Aquaculture and Waste Water Treatment.
The Dryden Aqua Air Diffuser is a semi-flexible, high-efficiency fine bubble air diffuser available in 9 different lengths, depending on the air through-put required . It provides oxygen transfer rates of up to 5kg/kw, 10m3/h of air and 1 kg of O2/h. Its semi-flexible construction with its own internal ballast will stay on the bottom of tank or pond without the need to be anchored to the floor.
The Dryden Aqua Air Diffuser combines excellent performance with cost effectiveness for aeration, oxidation and biological treatment.
Dryden Aqua Air Diffuser Key Features
Semi-flexible, tubular construction
Self weighted
Available in 9 lengths from 0.3 – 3m.
Air handling capacity from 1 – 10m3/hr
Less than 0.2 Bar (3 psi) pressure differential
Oxygen transfer efficiency up to 5 kg/kwhr
Resistant to calcification
Easy to clean and maintain
Robust and long-lasting (typical lifespan is 5 – 10 yrs)
Built in non-return valve
Stainless steel and plastic construction
Can be used with Air, N2, CO2
Oxygen Transfer Performance
Surface aerators waste a huge amount of kinetic energy throwing the water into the air, transfer coefficient is 1 kg to 2 kg of oxygen per kW. Membrane diffusers are more efficient at 2 kg to 3 kg of oxygen per kW. The Dryden Aqua diffuser at over 5 kg is therefore the most efficient fine bubble diffuser available and is ideal for retrofit applications as a simple drop in product for tanks and ponds in Aquaculture and Waste Water Treatment.
The Dryden Aqua Air Diffuser is a semi-flexible, high-efficiency fine bubble air diffuser available in 9 different lengths, depending on the air through-put required . It provides oxygen transfer rates of up to 5kg/kw, 10m3/h of air and 1 kg of O2/h. Its semi-flexible construction with its own internal ballast will stay on the bottom of tank or pond without the need to be anchored to the floor.
The Dryden Aqua Air Diffuser combines excellent performance with cost effectiveness for aeration, oxidation and biological treatment.
Dryden Aqua Air Diffuser Key Features
Semi-flexible, tubular construction
Self weighted
Available in 9 lengths from 0.3 – 3m.
Air handling capacity from 1 – 10m3/hr
Less than 0.2 Bar (3 psi) pressure differential
Oxygen transfer efficiency up to 5 kg/kwhr
Resistant to calcification
Easy to clean and maintain
Robust and long-lasting (typical lifespan is 5 – 10 yrs)
Built in non-return valve
Stainless steel and plastic construction
Can be used with Air, N2, CO2
Oxygen Transfer Performance
Surface aerators waste a huge amount of kinetic energy throwing the water into the air, transfer coefficient is 1 kg to 2 kg of oxygen per kW. Membrane diffusers are more efficient at 2 kg to 3 kg of oxygen per kW. The Dryden Aqua diffuser at over 5 kg is therefore the most efficient fine bubble diffuser available and is ideal for retrofit applications as a simple drop in product for tanks and ponds in Aquaculture and Waste Water Treatment.
The Dryden Aqua Air Diffuser is a semi-flexible, high-efficiency fine bubble air diffuser available in 9 different lengths, depending on the air through-put required . It provides oxygen transfer rates of up to 5kg/kw, 10m3/h of air and 1 kg of O2/h. Its semi-flexible construction with its own internal ballast will stay on the bottom of tank or pond without the need to be anchored to the floor.
The Dryden Aqua Air Diffuser combines excellent performance with cost effectiveness for aeration, oxidation and biological treatment.
Dryden Aqua Air Diffuser Key Features
Semi-flexible, tubular construction
Self weighted
Available in 9 lengths from 0.3 – 3m.
Air handling capacity from 1 – 10m3/hr
Less than 0.2 Bar (3 psi) pressure differential
Oxygen transfer efficiency up to 5 kg/kwhr
Resistant to calcification
Easy to clean and maintain
Robust and long-lasting (typical lifespan is 5 – 10 yrs)
Built in non-return valve
Stainless steel and plastic construction
Can be used with Air, N2, CO2
Oxygen Transfer Performance
Surface aerators waste a huge amount of kinetic energy throwing the water into the air, transfer coefficient is 1 kg to 2 kg of oxygen per kW. Membrane diffusers are more efficient at 2 kg to 3 kg of oxygen per kW. The Dryden Aqua diffuser at over 5 kg is therefore the most efficient fine bubble diffuser available and is ideal for retrofit applications as a simple drop in product for tanks and ponds in Aquaculture and Waste Water Treatment.
Hand-held oxygen and temperature meter with NFC and Bluetooth technology
The Polaris C LDO Optical meter is an almost maintenance free meter for measuring dissolved oxygen and temperature. The meter is sturdy, easy to use and has an extensive longevity making it ideal for harsh conditions.Polaris C LDO can store up to 2500 complete set of data, including time and date stamps. The logged data can be stored either manually or automatically with the possibility to group the data into categories.
The stored data can be uploaded directly to Cobália using Bluetooth technology. Scan the Cobália NFC tag on the tank and all data will be uploaded to your “digital farm”. Tank specific data assigned to the tags will be stored in Cobália for analysis on temporal variation, generation of graphs and for multivariable analysis on performance.
The meter has a built-in self-check of all hardware, it compensates automatically for barometric pressure and it has a notably short response time. With this meter, you get the high-quality associated with OxyGuard technology and a product that will serve you well for many years.
Commander probes, 4 wire cable, for Commander, Pacific and Atlantic: D0243C: For mg/l and % saturation measurements. Also measures temperature
*Accessories are shipped with every OxyGuard probe. You will thus be able to change the membrane if you manage to damage it during installation. Otherwise the accessories can be enough for up to 5 years’ use.
OxyGuard Polaris C CO2
The OxyGuard Polaris C CO2 meter is a robust and durable device designed to accurately monitor carbon dioxide levels in various environments. Whether used in industrial settings, laboratories, or greenhouses, this state-of-the-art meter provides precise measurements to ensure optimal conditions for plants, animals, and humans.
Accurate CO2 Monitoring
Equipped with advanced sensors, the OxyGuard Polaris C CO2 meter delivers accurate and reliable readings of carbon dioxide levels. With a user-friendly interface and easy-to-read display, users can quickly assess the data and make necessary adjustments to maintain ideal CO2 levels for improved productivity and overall well-being.
Durable Design
Constructed with high-quality materials, the OxyGuard Polaris C CO2 meter is built to withstand the rigors of daily use. Its durable design ensures long-lasting performance and dependable operation, making it a valuable tool for professionals seeking efficient and effective CO2 monitoring solutions.
Discover GroAqua's range of specialist equipment for wastewater treatment, water aeration and environmental monitoring. We supply innovative aeration technology and water quality monitoring instruments designed to support efficient treatment processes, oxygen management and environmental control across industrial, commercial and aquatic applications.
Our collection brings together high-performance fine bubble air diffusers from Dryden Aqua and advanced dissolved oxygen and environmental monitoring equipment from OxyGuard.
Whether you're improving aeration efficiency in a wastewater treatment plant, monitoring dissolved oxygen levels in treatment tanks or measuring environmental conditions in aquatic systems, GroAqua offers specialist equipment to support your operational requirements.
Wastewater Treatment Aeration Systems
Aeration is an essential process in many wastewater treatment applications. Supplying oxygen to water supports aerobic biological treatment processes, helping microorganisms break down organic pollutants and contributing to effective wastewater treatment.
GroAqua supplies Dryden Aqua fine bubble air diffusers, engineered to provide efficient oxygen transfer and reliable aeration performance.
Our aeration products are suitable for applications including:
Municipal wastewater treatment plants.
Industrial wastewater treatment.
Biological treatment systems.
Aerobic treatment tanks.
Wastewater oxidation processes.
Aquaculture and fish farming.
Pond and water reservoir aeration.
Existing aeration system upgrades.
Fine Bubble Air Diffusers – Dryden Aqua
Fine bubble aeration is an effective method of transferring oxygen into water. By producing small air bubbles, diffuser systems increase the contact area between air and water, supporting oxygen transfer and biological treatment processes.
Dryden Aqua air diffusers feature a semi-flexible, weighted tubular design that sits on the bottom of tanks and ponds without requiring additional floor anchoring.
Key product features include:
High-efficiency fine bubble aeration.
Oxygen transfer performance of up to 5 kg O₂/kWh under specified conditions.
Air handling capacity of approximately 1–10 m³/hour.
Semi-flexible, self-weighted construction.
Available in different diffuser lengths.
Built-in non-return valve.
Resistance to calcification.
Designed for straightforward installation and maintenance.
Suitable for wastewater treatment and aquaculture applications.
These diffusers can be particularly useful when upgrading existing aeration installations, where improving oxygen transfer efficiency and reducing energy consumption are important considerations.
Environmental Monitoring and Water Quality Measurement
Accurate environmental monitoring is essential for understanding water conditions, maintaining treatment performance and supporting effective process management.
GroAqua supplies OxyGuard monitoring instruments designed to measure important water quality parameters, including dissolved oxygen, temperature and carbon dioxide.
Our monitoring equipment is suitable for environmental professionals, wastewater treatment operators, aquaculture facilities and industrial water treatment applications.
Dissolved Oxygen (DO) Monitoring
Dissolved oxygen is one of the most important parameters monitored in biological wastewater treatment and aquatic environments.
Maintaining appropriate dissolved oxygen levels helps support aerobic biological processes and provides valuable information about treatment conditions.
Our OxyGuard dissolved oxygen monitoring range includes:
Handheld dissolved oxygen meters.
Optical dissolved oxygen meters.
Dissolved oxygen and temperature measurement instruments.
Dissolved oxygen monitoring probes.
Replacement probe accessories and components.
The OxyGuard Polaris C DO and Polaris C LDO instruments provide portable measurement solutions, with data logging and Bluetooth connectivity for compatible monitoring workflows.
Carbon Dioxide (CO₂) Monitoring
Monitoring carbon dioxide levels can provide useful environmental information in industrial, laboratory, greenhouse and aquatic applications.
The OxyGuard Polaris C CO₂ meter offers a portable solution for measuring carbon dioxide concentrations, helping professionals assess environmental conditions and make informed operational decisions.
Temperature Monitoring and Measurement Probes
Temperature is an important parameter in water treatment, biological processes and aquatic environments.
GroAqua supplies compatible OxyGuard measurement instruments and probes designed to support reliable monitoring of water conditions.
Our monitoring accessories and replacement components also help maintain existing measurement installations.
Applications Across Wastewater Treatment and Environmental Management
Our aeration and monitoring products are suitable for a range of professional applications, including:
Municipal Wastewater Treatment
Aeration equipment and dissolved oxygen monitoring instruments for wastewater treatment plants, biological treatment tanks and associated process installations.
Industrial Wastewater Treatment
Aeration and environmental monitoring solutions for industrial facilities managing wastewater treatment and biological processing operations.
Environmental Water Monitoring
Portable monitoring equipment for measuring dissolved oxygen, temperature and carbon dioxide in relevant environmental applications.
Aquaculture and Fish Farming
Fine bubble aeration systems and water quality monitoring instruments to help manage oxygen levels and environmental conditions in fish farming installations.
Ponds and Water Reservoirs
Aeration equipment designed to improve oxygen transfer and support water management in ponds, tanks and reservoirs.
Why Choose GroAqua for Wastewater Aeration and Monitoring?
GroAqua supplies specialist water treatment and environmental monitoring equipment from recognised manufacturers.
Fine bubble aeration technology from Dryden Aqua.
Dissolved oxygen monitoring equipment from OxyGuard.
Optical and conventional DO measurement instruments.
Portable water quality monitoring solutions.
CO₂ and temperature measurement equipment.
Specialist probes and monitoring accessories.
Aeration solutions for wastewater treatment and aquaculture.
Equipment for industrial and environmental applications.
Shop Wastewater Treatment and Environmental Monitoring Equipment at GroAqua
Whether you're upgrading a wastewater aeration system, improving oxygen transfer efficiency or sourcing reliable dissolved oxygen monitoring equipment, explore the GroAqua collection.
Discover Dryden Aqua fine bubble diffusers and OxyGuard environmental monitoring instruments designed to support wastewater treatment, water quality management and aquatic applications.
Need help selecting the right equipment? Contact the GroAqua team for assistance with aeration requirements, diffuser specifications, dissolved oxygen monitoring and product compatibility.
