Prox MEGA AIR HP-2000 Mega Air Prox MEGA AIR HP-2000 Mega Air CODE NO. MAHP2000. Operation confirmed before listing. I used it, but it hasn't been used recently, so I'm listing it. There are scratches. Please check the photos. Thank you. Powerful air pump with quiet "3VALVE" system. A powerful air pump that delivers approximately 2 liters per minute during high operation. The "3VALVE" system, which reduces vibration and achieves quiet operation by arranging three pumps in one unit and operating them sequentially. A large stone is included as standard, and fine bubbles quickly penetrate the water. Ideal for live bait, live bait for ayu, keeping fish, ornamental fish, etc. *There are individual differences in how the bubbles come out. Before use, be sure to thoroughly soak the stone in water. ■Product Name: Mega Air HP-2000 ■Product Code: MAHP2000 ■Batteries Used: 2 x D-size dry batteries (sold separately) ■Battery Life (at 20°C) *When using alkaline dry batteries 　LOW: Approximately 45 hours continuous 　HIGH: Approximately 15 hours continuous ■Airflow Rate *Initial battery value 　LOW: 1.2L/min 　HIGH: 2.0L/min ■Main Unit Size: Approx. W80 x D40 x H150mm ■Stone Size: Approx. Diameter 80 x H16mm (excluding hose connection) ■Hose Length: Approx. 60cm ■Motor Life: Approx. 700 hours ■Main Unit Weight: Approx. 200g (excluding stone and hose) ■Materials: [Main Unit] ABS, [Stone] Ceramic, [Hose] Silicone ■JAN: 4548992218486 ■Manufacturer: PROX *Note 　Due to the product's structure, sand powder may come out from inside the stone, 　but this does not affect its use. 　Please be careful to avoid accidental ingestion of the sand powder.