Brass RV Winterization Blow-Out Plug with Integrated Drain Valve

💨 A Practical Connection for Seasonal Draining

Water left inside plumbing can expand when it freezes. Used as part of the equipment manufacturer's winterization procedure, this adapter lets you introduce regulated compressed air to help move remaining water through open outlets.

🔧 Small Fitting. Straightforward Purpose.

• Solid brass body: A durable metal fitting for your seasonal maintenance kit.
• Garden hose connection: The listed 3/4-inch garden hose thread is intended for compatible hose-thread connections. Check thread size and male/female orientation before ordering.
• Air compressor connection: The listed 1/4-inch quick-connect fitting connects to a matching air coupler. Confirm the coupling profile, not just the nominal size.
• Rubber sealing components: Help form a seal when the fitting is correctly matched and installed. Inspect seals before each use.

🛠️ Plan Your Winterization Before You Connect

• Prepare the system: Turn off the water supply, relieve pressure, and drain or isolate components as directed in your equipment manual. Follow any water-heater bypass instructions.
• Check the fit: With the air supply off, connect the matching hose-thread end and inspect the seal. Do not force incompatible threads.
• Regulate the air: Use a pressure regulator and suitable clean air supply. Follow the lowest permitted pressure limit across the system, adapter, and connected components. Never connect an unregulated compressor.
• Clear and finish: Open outlets and apply air only as instructed by the system manufacturer. Shut off the air and relieve pressure before disconnecting, then complete the remaining winterization steps.

Important: There is no single safe air-pressure setting for every RV or water system. This adapter does not replace required antifreeze treatment, draining of traps or tanks, or other manufacturer-specified procedures. Air purging is not a sanitizing treatment.

📋 Check the Details Before Ordering

Body material: Solid brass.
Listed hose thread: 3/4-inch garden hose thread (GHT).
Listed air connection: 1/4-inch quick-connect fitting.
Sealing components: Rubber components.
Required equipment: A compatible air compressor, regulator, and matching hose/coupler, supplied separately.

Check the selected option and package details for the exact fitting orientation and included pieces. For drinking-water systems, verify that the specific adapter and air supply are suitable for potable-water use before connecting.