The fastest way to prep your RV water lines for winter. Thread this compact plug onto your fresh water city-water inlet, connect a standard air compressor, and blow out every drop of standing water before freezing temps can crack your pipes or fittings. One simple tool, one connection, done.
Winterizing an RV water system with compressed air is faster and more thorough than antifreeze alone -- but only if you can get a solid air connection at the water inlet. The Valterra P23500VP gives you exactly that. Its Schrader valve-style center port accepts a standard air compressor chuck, while the outer shell threads directly onto the city-water inlet using standard garden hose thread (GHT). No adapters, no improvised fittings, no leaks.
Valterra manufactures this plug in the USA from durable plastic rated for repeated seasonal use. At under one ounce, it stores in a tool pouch, a glove box, or a small parts bin without taking up meaningful space. It is a tool you reach for once or twice a year and rely on completely -- compact size and proven design matter more than features you will never use.
Threads directly onto the standard 3/4 in. GHT city-water inlet found on the vast majority of RVs, campers, and travel trailers -- no adapter required.
The center port accepts a standard air compressor inflation chuck for a secure, leak-free connection while you blow out each line.
Weighs approximately 0.05 lbs. Fits easily in a tool bag, storage compartment, or parts drawer for year-round readiness.
Manufactured by Valterra in the USA. Includes a limited 90-day manufacturer warranty against defects in materials and workmanship.
Using the P23500VP is straightforward, but the sequence matters to protect your pump and fixtures: