The Mastercool ML67010 30 Lbs R134A Recovery Tank with Float Turn Off Switch is a great option for businesses and homeowners who need to recover large amounts of air conditioning or refrigerant. This tank has a float switch that allows you to turn off the flow of refrigerant if needed, and a built-in gauge allows you to monitor the level of refrigerant. The Mastercool ML67010 30 Lbs R134A Recovery Tank with Float Turn Off Switch is a great option for businesses and homeowners who need to recover large amounts of air conditioning or refrigerant. This tank has a float switch that allows you to turn off the flow of refrigerant if needed, and a built-in gauge allows you to monitor the level of refrigerant.