Specification Brand : Airadyne BulletPoint1 : Efficient long-lasting Disc Diffuser designed to produce fine bubbles and maximize oxygenation/aeration of water and its contents BulletPoint2 : Membrane diffusers are far less susceptible to clogging or fouling than stone diffusers because the algae cannot clog the membrane BulletPoint3 : The membrane closes over the diffuser inlet which aids in preventing backflow of water into the air supply line BulletPoint4 : This is a low maintenance item, as well as low cost to maintain. The EPDM membranes are replaceable, minimizing the impact on our environment BulletPoint5 : This diffuser has a 3/4" NPT threaded fitting/tiny perforated air holes/2.0 - 20.0 SCFM per diffuser/Overall Diameter: 15" Color : Black Department : unisex-adult ExternallyAssignedProductIdentifier1 : 5712443369181 ExternallyAssignedProductIdentifier2 : 5712445955375 IncludedComponents : 1 ItemName : 15" Fine Bubble Disc Diffuser ItemPackageDimensions_Height : 24.9 centimeters ItemPackageDimensions_Length : 5 centimeters ItemPackageDimensions_Width : 8.2 centimeters ItemPackageQuantity : 1 ItemTypeKeyword : aquarium-filters Manufacturer : Airadyne Material1 : Acrylonitrile Butadiene Styrene Material2 : Plastic MaximumFlowRate : 500 liters_per_hour ModelName : NO.17-02 ModelNumber : AIR-70007 NumberOfItems : 1 NumberOfPieces : 1 PartNumber : AIR-70007 PowerSourceType : Corded Electric ProductDescription : Airadyne 15" Fine Bubble Disc Diffuser ProductSiteLaunchDate : 2014-11-26T00:39:42.756Z Size : 132GPH, 6W SpecificUsesForProduct : Active Style : Modern-minimalist SupplierDeclaredDgHzRegulation : not_applicable UnitCount : 1 UnspscCode : 40142000 Voltage : 60 volts_of_alternating_current Wattage : 6 watts