Pondmaster Small Straight Air Diffuser - 9.5 in.
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Pondmaster Air Diffusers handle your pond and pond air pump with large tubing connections. Membrane designs are easier to clean than traditional airstones. Diffusers stay down easily by filling supplied nylon bags with gravel. Includes 1/2" barb connector and 1/2" barb plug. Works with 1/2" or 5/8" tubing.