?pawfly Pawfly Aquarium Air Pump with Nano Bio Sponge Filter Kit Air Control Valve Airline Tubing and Check Valve Accessories 3-10 Gal is up for auction in Pet Supplies. The current bid is $4.00, 84% below the $24.99 MSRP, in New/Like New condition. This auction has ended — similar items appear in live auctions regularly.