Automatic D/C Battery Air Pump #B11
• Penn-Plax; Silent Air B11
• On/Off Switch!
• Unit plugs into electrical outlet. This connection allows pump to detect power outage. This pump will ONLY operate when there is no A/C electricity (when switch is in 'On' position).
• Back-up air pump system that can keep fish alive
• Excellent for Power Failures and Fish Transport
• Requires Two 'D' Batteries (not included)