Point Four™ Micro Bubble Diffusers (MBD)
Starting at $101.93
Features
• One of the most efficient diffusers available for aquaculture
• Produces extremely fine micro-bubbles (approx. 100–500 microns) for strong gas transfer
• Uniform bubbling across the ceramic plate surface helps minimize bubble coalescence
• Robust construction: ceramic plates set in a rigid aluminum base
• Easy to install and operate for trouble-free day-to-day use
• Simple ceramic plate maintenance to support consistent bubbling performance
Increase yield while controlling the cost of expensive gases with a high-efficiency micro-bubble diffuser built for demanding aquaculture environments. Manufactured from premium materials and rigorously tested, this diffuser delivers reliable performance you can count on in hauling, holding, and growout systems.
Point Four diffusers use an ultra fine-pore ceramic plate to create a dense cloud of micro-bubbles (approximately 100–500 microns). The flat plate design promotes uniform bubbling across the surface, reduces bubble coalescence, and can achieve absorption rates above 80% depending on depth and flow.
Applications: Pure gas applications (oxygen, carbon dioxide), high-density hauling, holding and growout tanks, and emergency aeration.
Specifications:- Bubble size: approximately 100–500 microns
- Absorption rate: in excess of 80% (dependent on depth and flowrate)
- Bubbling pressure: 25–35 psi (1.7–2.4 bar)
- Diffuser plate: ultra fine-pore ceramic, flat plate design for uniform distribution
- Base: rigid aluminum
- Typical uses: oxygen/CO₂ transfer, hauling, holding/growout, emergency aeration

