Product Sections

Main Pages

Best Sellers

9 cubm/hr 3.00m long fine bubble air diffuser for waste water treatment

9 cubm/hr 3.00m long fine bubble air diffuser for waste water treatment

Fine bubble high performance air diffusers. Semi flexible diffuser construction 300cm long 32mm diameter. Maximum recommended air flowrate is 10 cubic metres of air per hour. Materials of construction are plastic with 316 stainless steel end fittings, aslo fitted with non return valve in diffuser. Diffuser contains its own internal fused silica bead ballast. End fittings are 1/2" acetyl plastic as standard.

The Dryden Air diffuser is the leading air diffuser used in UK aquaculture, treatment of leachate water on landfill sites, sewerage treatment and numerous other applications.


OEM and dealer enquires welcomed
find out more

AFM grade 1 filtration media

AFM grade 1 filtration media

AFM (Advanced Filtration Media) grade 1 is the standard sized AFM media equivalent to 16 x 30 grade sand. M

Supplied in 25kg sacks, grade 1 particle size 0.5mm to 1.10mm. Media should be used on top of a layer of grade 2 AFM.

Price is per 25kg sack

find out more

Oxygen standard probe

Oxygen standard probe

High performance, very robust galvanic oxygen probe for the measurment of dissolved oxygen in water, waste water and air. Completely sealed internals, so there is no risk of insulation failure, heavy duty Sub Sea cable, high mv out-put 8 mv to approx 1mg/l dissolved oxygen. Ideal probe for your own oxygen monitors such as multichannel or stand-alone PLC based systems.

The probe is supplied with 5 meters of cable (alternative lengths available), pack of 5 membranes and 50ml of electrolyte.

Please enquire about discounts for orders of 10 or more.
find out more

Aquaculture | Water Technology | Environmental Products.....delivered worldwide

Buy Online! - The best way to buy!

- Air diffusers & compressors
  - Aeration systems for water treatment
  - Air diffusers
    - air diffuser accessories
  - Air compressors / blowers
    - Fans regenerative air blowers
    - Rotary vane 10 to 40 cubm/hr air and spare vanes
    - Rotary vane 60 to 100 cubm/hr air
    - Diaphragm compressors mains power operated
    - Linear air blowers
    - Roots air blowers, tri-lobe up to 1 bar
      - 250cubm/hr to 350cubm/hr roots blowers
      - 500cubm/hr compressor
      - 1000 cubm/hr compressor
      - Optional extras spares & consumables
    - Roots air blower claw-type up to 2 bar
    - 12v & 24v dc diaphragm air compressors
  - Jet aerator
- AFM filtration systems
  - Small scale systems (0.1 to 6 cubm/hr)
  - Medium scale systems 20 to 50 cubm/hr
- AFM & other types of filter media
  - AFM media
    - AFM (regular)
  - DFM Denitrification Filter Media
  - Filter sand & pea gravel
  - Activated carbon
    - Activated carbon granular
    - Filters for activated carbon 10 bar
  - Ammosorb, a zeolitic ammonium ion exchange media
  - MagPhlow media
  - Catalyst manganese
- Biofiltration systems
- Biofilter, ozone and degassing plastic media
  - Bioflitration
    - fluidised bed biofilter media
    - static media
  - Degasser packing
  - Ozone plastic media column packing
- Chemical & biological products
  - ACO (active catalytic oxidation)
  - NoPhos
  - APF (Active Poly Floc)
  - Electro-Chlorination systems
  - Phosphoric acid 75%
  - Domestic biological products
    - Drainmate
    - Clarity for ponds
    - Septic tanks
  - Antitox, fish transportation buffer
  - Biofilter startup dry bacterial culture
    - Nitrobac, biofilter startup culture
  - Biofloc, bacterial floculant for activated sludge
  - Molasses biofilter nutrient
  - No-foam, silicon anti-foaming agents
  - Seawater salt mix, and salts
    - Artifcial seawater salt mix
    - Sodium Bicarbonates
    - Calcium chloride
- Degassers
- Drinking water systems
  - Ultra membrane filters, point of entry
    - Ultra filters complete systems
  - Osmosis water filters
    - Under sink RO units
    - Light commercial R.O.units
      - Light Commercial R.O units
      - Spares and accessories
    - Heavy duty Reverse Osmosis units
  - UVc disinfection
- Decantation tanks
- Drum filter
- Fittings plastic & metal, hose, washers & "o"rings
  - Hose for air, oxygen & ozone
    - nylon hose for oxygen
    - Urethane hose
    - PVC reinforced hose ( for air & oxygen)
    - PTFE hose for oxygen and ozone
  - Metal fittings
    - brass compression hose fittings
      - tees
      - Threaded fittings
    - brass hose fittings
    - brass fittings general
      - Reducing bushes
  - Plastic fittings
    - Polyethylene fittings and compression couplers
      - compression fittings
        - Straight connectors
      - Threaded nipples
      - Threaded reducing socket
      - Threaded sockets
      - Reducing threaded nipple
      - Threaded reducing bush
      - Quick coupling valve and key
      - saddle clamps
    - Polyethylene electrofusion fittings
      - couplers
      - elbows 90 deg
      - elbows 45 deg
      - equal tees 90 deg
      - end caps
      - stub flanges with backing rng and gasket
    - PVC & ABS pipe fittings
    - Valves
  - Washer & "o" rings
  - Screw clips and hose attachments
- Fish Feeders & miscellaneous products
  - Fish feeders
    - Clockwork belt feeders
  - Feed scoop
- Float switches & pressure switches
  - Float switches
  - Pressure switches
- Flow monitors
  - Magnetic pipe flow meters
- Glass beads
- Instrumentation, OxyGen monitors & water test kits
  - Oxygen monitoring, probes & controllers
    - Oxygen probes
    - Transmitters for oxygen and temperature
      - Din rail mounted transmitter with display
      - Panel mount transmitter
    - AquaTraul multi channel oxygen process controller
    - Industrial waterproof OxyGen controllers
    - Portable oxygen meter, waterproof
    - Datalogging dissolved oxygen meter
  - Water Test Kits
    - Portable colourimeter and equipment
    - Test reagents for portable colourimeter
      - standard test, 250 test per pack
      - Chlorine tests
      - COD testing
    - Reagents for colourimeter
  - Bacterial Test Kits
  - Phosphate test kits
  - Refractometers & Hydrometers
  - Industrial process controllers & transmitters
    - industrial controllers pannel & enclosures
      - oxygen
      - Conductivity
      - pH & ORP
        - Wall mounted waterproof insruments
        - Pannel mounted units
      - Enclosure for industial panel instruments
    - Industrial monitors, 2 wire transmitters
  - pH monitoring & ORP (redox)
    -  AquaTraul portable waterproof pH, ORP & mv meter
    - pH Tablets
  - TDS, conductivity and temperature meters
  - TDS and pH combined portable meter
  - Waterproof pocket testers
    - TDS waterproof tester
    - salinity meter
    - pH waterproof testers
    - orp (redox) waterproof testers
    - Conductivity waterproof esters
  - Total Gas monitors
  - Thermometers
  - Turbidity
  - Water sampler bottle
    - Ruttner sample bottles
    - Simple stainless steel sample bottles
    - Spares for Ruttner and Stainless Steel sampler
      - Weights for Ruttner sampler
      - rope
      - reels
- Lake & pond conditioning products
  - NoPhos
  - Pond clarity Pro
- Oxygen diffusers, generators, regulators, fittings
  - Oxygen diffusers
  - Oxygen generators
    - Oxygen AirSep generators and air compressors
      - Oxygen generators
      - Air compressors for oxygen generators
    - Oxygen generators workhorse with compressor
      - Workhorse series oxygen generators
    - Oxygen generators TeamWorks range
  - Needle valves, brass with PTFE seals
  - Oxygen flow indicators
  - Regulators
- Ozone generators & contactors
  - OZ500 ozone generator
  - Air disinfection with ozone
  - Nozzles
    - Mass transfer ozone nozzles & eductor
  - Ozone contactors
- Ozone and oxygen injectors
  - Ozone venturi injectors
    - Injectors PVDF plastic
    - Injectors in stainless steel
    - Injector reinforcement for PVDF units
  - Mass transfer multiplier nozzels black PVDF
- Paint, plastic paint for concrete
- Pressure sand filters, cartridge and bag filters
  - Commercial GRP filers 1.2m to 2.4m diam
    - DIN standard commercial filters 2.5 bar
    - Manifolds , manual 5 valve arrangement for DIN standard filters
    - Manifolds ,automatic electrical 5 valve arrangement for DIN standard filters
    - Manifolds ,automatic pnuematic 5 valve arrangement for DIN standard filters
  - GRP filters 24" & 30" diameter
    - GRP flters with multiport valve
    - Multiport valves for pressure filters
      - Automatic multiport valves
      - Manual valves
    - Spares for standard GRP pressure filters
  - Stainless steel pressure filters
  - Mild steel vertical pressure filters
  - Cartridge filters
  - Bag filters
- Pumps,centrifugal, diaphragm & monitoring pH + ORP
  - Peristaltic dosing pumps
    - Single headed pump
    - Double headed pump
  - Plastic self priming pumps 5-30 cubM/hr ITT
    - ITT Marlow AV series Argonaut 1 speed
    - Spares for ITT JEC series
      - diffusers & impellors
      - miscellaneous spares
  - High water flow plastic pumps 50 to 170 cubm/hr
- Swimming pool products
  - Leaf Catcher
    - Leaf Catcher for over flow pools
    - Leaf Catcher for skimmer pools
- Temperature control Heating & Cooling systems
  - Titanium heat pumps for heating & cooling
  - Drop in heat exchangers for Landfill sites and tanks
  - Water heaters
    - immersion heaters with thermostats
    - In-line heaters
      - Heater with electronic thermostat
      - Heater with mechanical thermostat
  - Titanium heat exchangers with thermostat & by-pass
- UVc Disinfection
  - UVc unit medium pressure Stainless Steel
  - Plastic UVc
  - Spares for plastic & stainless steel UVc units
    - UVc 55 watt lamps
    - Quarts sleeve for UVc units
- Valves
  - Besgo automatic valves for sand filters
    - Besgo valves for filters with DN40 / d50mm connections
    - Besgo valves for filters with DN 50 / d 63mm connections
    - Besgo valves fron DN65 / d75mm to DN125mm / d 140mm
    - AS Controllers and hose connections
      - AS Controller
        - AS Controller
        - Accessories
      - AS Controller Plus
        - AS Controller plus
        - Accessories
        - Component parts complete
        - Optional components
- Water-proof paper & notepads
- Worm Away
- ZPM zeta potential mixers

Prices shown are all ex-works Edinburgh Scotland