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Pentair Aquatic Eco-Systems Point Four™ Plastic Micro Bubble Diffuser (MBD)
Point Four Plastic Micro Bubble Diffusers (PMBD) are one of the most efficient diffusers available, allowing you to increase yield while controlling the cost of expensive gases. Made from premium materials and subject to rigorous testing, PMBDs provide the kind of performance and reliability our reputation is built on.
Point Four diffusers use a specially developed, ultra fine pore ceramic plate that produces a cloud of extremely fine bubbles of approximately 100–500 microns; far superior to airstones, porous hose or membrane type designs. The flat plate design ensures uniform bubbles across the entire surface and minimizes bubble coalescence to achieve an absorption rate in excess of 80%, depending on depth and flowrate.
• One of the most efficient diffusers available.
• Robust construction—ceramic plates set in an injection molded plastic base with solid brass connection fittings.
• Easy to install and use—trouble-free operation.
• Flexible, modular design lets you easily add or subtract diffusers as your needs change.
Overall size (with fitting) is 8 5/8" x 2 3/4" x 3/4" (22 cm x 7 cm x 1.9 cm). Weighs 1 lb (0.45 kg). Recommended operating range is up to 0.75 Lpm (1.6 scfh). Maximum flowrate @ 50 psi (3.5 bar) is 2.2 Lpm (9.5 scfh). 1/4" hose barb gas inlet. Bubbling pressure is 25 to 35 psi (1.7 to 2.4 bar).
Note: Diffusers are also known as airstones.