Marketair MK-DMG1 Condensate Drain Adapter 5/8 to 3/4 Pvc

Product Description

The MARKETAIR MK-DMG1 is a condensate drain adapter designed to transition a 5/8-inch drain outlet to a 3/4-inch PVC drain line. Known in the trade as the Drainmate Green, this fitting provides a direct, leak-resistant connection between the evaporator coil or air handler drain pan and standard 3/4-inch schedule 40 PVC condensate piping. It is a small but critical component in keeping condensate drainage systems flowing correctly and preventing water damage caused by improper fitment or loose connections. HVAC technicians install this part during new system startups, coil replacements, or drain line retrofits.

This adapter is suited for residential and light commercial HVAC applications where the equipment drain outlet measures 5/8 inch and the field-installed drain line is 3/4-inch PVC. It is commonly used on split-system air handlers, package units, and fan coil installations where mismatched drain port sizes would otherwise require field fabrication or makeshift reducers. The adapter simplifies the connection and reduces the risk of condensate leaks at the transition point.

Key Features

• Transitions 5/8-inch equipment drain outlet to 3/4-inch PVC drain line
• Designed for standard schedule 40 PVC condensate piping systems
• Compact form factor fits in tight air handler drain pan access areas
• Eliminates the need for field-fabricated reducers at the drain connection

Compatibility

Designed as an OEM-style condensate drain fitting for residential and light commercial HVAC systems with a 5/8-inch drain outlet connecting to 3/4-inch PVC condensate drain piping.

Installation Notes

Installation is performed by a licensed HVAC technician. Power to the air handler or package unit should be shut off at the disconnect before servicing the drain pan or drain line. Use appropriate PVC primer and solvent cement on the 3/4-inch socket end per the pipe cement manufacturer instructions and local plumbing code requirements. Verify that the drain line pitches correctly toward the discharge point to maintain gravity flow and prevent standing water in the pan.

Technical Specifications

• Inlet Size: 5/8 inches
• Outlet Size: 3/4 inches
• Connection Type: PVC

Standard Information

• Brand: MARKETAIR
• Manufacturer Part Number: MK-DMG1