Before winterizing your RV, attach this blow-out plug to your fresh-water inlet and connect an air compressor to expel remaining water from every line and corner of your plumbing system. The quick-connect fitting accepts a standard air hose, and no helper is needed—you operate it alone from outside. Plastic construction with a lead-free brass connection resists corrosion and lasts through many freeze-thaw cycles.

• Quick-connect type for standard air compressor hoses
• Plastic construction with lead-free brass fitting
• Threads onto city water inlet
• Single unit, one-person operation