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Keep any system aerated with this line of air diffusers. These offer great efficiency at an affordable price. Quad packages are 4 diffusers and a connector block, with a 1/4” barb inlet. Shipped disassembled. Dimensions are for one of the diffusers. One year warranty. Rubber poly (EPDM) diffusers perform best in pure gas applications (oxygen), hauling tanks, aquariums, hatcheries and backup aeration.
Note: Diffusers are also known as airstones.