Lennox Y8799 Supco JV1 condensate drain blow-out Jones valve is a simple, effective HVAC service tool designed to quickly clear clogged condensate drain lines without cutting or disconnecting piping. This valve installs directly into a 3/4 inch condensate line and allows technicians to safely blow out blockages using compressed air, CO₂, or nitrogen through a standard 1/4 inch male flare connection.

The JV1 Jones Valve eliminates the need for buckets, plugs, or locating the discharge end of the drain line. Its compact design makes it easy to install in tight spaces, while the durable Schedule 40 PVC construction ensures long-term reliability in residential and light commercial HVAC systems. A built-in Schrader valve allows fast connection to gas tanks for controlled, mess-free drain cleaning.

Ideal for preventive maintenance and service calls, this condensate drain blow-out valve helps prevent drain backups, water damage, float switch trips, and system shutdowns caused by clogged condensate lines. The Supco JV1 is one of the smallest and easiest-to-use drain line valves available and includes a 1-year manufacturer warranty.

Key applications include air conditioners, heat pumps, furnaces, and mini-split systems requiring routine condensate line maintenance.