Features:

• Rifled copper tubing, enhanced aluminum fins
• Immersion-tested at 500 psi, then nitrogen-pressurized and sealed
• Left-hand refrigerant and plumbing connections
• Externally mounted flowrater body with Schrader valve
• Heavy duty plastic drain pans on all models
• AHRI certifiable with certain brands of A/C and heat pump systems
• UL listed for use with both R-22 and R-410a when proper metering device is used