Micro-pore disc aerators for aerobic tanks, biofilters and aquaculture — 215/260/300mm in EPDM or silicone membranes.
Micro-pore membranes deliver a fine, uniform bubble for efficient aeration with lower energy use.
Micro-pore membrane delivers fine bubbles for efficient oxygen transfer.
Match the membrane to your service conditions.
215/260/300mm for aerobic tanks, biofilters and aquaculture.
Micro-pore disc aerators use an EPDM or silicone membrane pierced with fine micro-pores. Air is distributed through the membrane to produce fine, uniform bubbles that rise through the mixed liquor, giving efficient oxygen transfer with lower energy use than coarse-bubble aerators.
Key features:
Specification: diameter 215 / 260 / 300 mm, EPDM or silicone membrane. Uses: aerobic tanks, aerated biofilters, activated sludge and aquaculture systems.
Diameter and membrane material both change what you order. See the disc aerator selection guide for the decision rules and the five points to confirm before requesting a quotation.
| Diameter | 215 / 260 / 300 mm |
| Membrane | EPDM or silicone |
| Recommended | 215mm EPDM, 260mm EPDM, 300mm silicone |
| Application | Aerobic tanks, aerated biofilters, aquaculture |
| MOQ / price | On request |
Disc diameter, membrane material and the details to confirm before requesting a quotation.
We publish 215 / 260 / 300 mm. Our recommendations are 215 mm and 260 mm in EPDM, and 300 mm in silicone. Diameter changes how many units you need and how air is distributed across the tank floor — it is not only a capacity choice.
EPDM is the default for municipal wastewater: good chemical resistance for typical duty and lower cost per unit. Its weak point is oil, grease and some industrial solvents. Silicone tolerates oils and greases better and handles higher temperatures, at a higher unit cost. For industrial effluent carrying hydrocarbons, specify silicone or confirm the chemistry with us first.
Aerobic tanks, aerated biofilters and aquaculture oxygenation. Disc assemblies connect to standard air distribution pipework, so retrofits are normally a straight replacement.
It follows from your oxygen demand, tank floor area and chosen diffuser spacing — not from a per-unit air figure alone. Give us tank dimensions, required oxygen transfer and blower pressure, and we will confirm a layout.
Both exist and the answer changes the quotation significantly. Tell us whether you need membranes only or complete disc assemblies, plus the connection standard. Membranes are a wear item — fouling and hardening cut transfer efficiency long before anything fails, so replacing on schedule matters more than the material chosen.
On request, because it depends on disc diameter, membrane material, connection standard, quantity and destination. Confirm those five points and we quote against them.
Send details on flow, media size and destination — we'll confirm the right grade, quantity and export packaging.
Request a QuoteNo obligation · response within 24h (working days)
