Marine Metal Glass Bead Airstones(0) No reviews yet $3.79 Quantity discounts available QuantityPrice Item No.: 118605 Gift Certificate Amount Model: AS-01 Quantity: -+ Add to Cart Details Marine Metal Glass Bead Airstones are replacement air stones for most Marine Metal aerators and air pumps. Model AS-00 are regular air stones. Model A... DetailsBackDetailsMarine Metal Glass Bead Airstones are replacement air stones for most Marine Metal aerators and air pumps. Model AS-00 are regular air stones. Model AS-01 are weighted air stones.Qty. per Pack: 2 Reviews 0 BackRatings & ReviewsNo reviews availableBe the first to Write a Review