【High Quality Brass Material】- The Winterizing Kit is made of solid lead-free brass with frosted parts of the highest quality. while the hose is made of flexible reinforced synthetic rubber, waterproof and corrosion-resistant, longer length than other manufacture, offers extra strength and durability. | 【Easy Connection】- 1/4" industrial air quick connect plug and 3/4" garden hose connector. The hose allows the adapter to enter narrow spaces and minimizes pressure on the pipes and fittings. 100% outdoor rated and almost indestructible. Easily connect to air compressors and garden taps to overwinter the lawn sprinkler system, taps, plumbing pipes and RV to prevent damage due to icing. Compatible with standard garden hose threading and air compressor quick connection common in America & Canada. | 【15" Flexible Blowout Hose】- 15" RV Winterize Sprinkler System control the supply of air with the compact shut-off valve. Flexible reinforced synthetic rubber hose 3/8” inner diameter is made of hybrid (PVC&Rubber). The hose is flexible enough to access tight spaces and minimizes stress on pipes and fittings. | 【RV Winterizing Kit】- The winterizing kit with shut off valve come with 3/4 male and female garden hose connector which is applied to winterize garden water pipes, winterize lawn sprinkler systems, by blowing out water from the water lines/plumbing,significantly reduce applications of antifreeze. | 【Wide Application】- Welspo RV antifreeze hose kit Fits for various water system, such as RV, camper, boat, Garden Hose, travel trailer etc. , such a vehicle with a water supply system to prevent freezing in winter. Also come with custom fit rubber washers and pipe sealant tape for secure sealing.