Keep the inside of your RV smelling fresh with thee 360 Siphon® RV holding tank vent cap from Lippert™. This uniquely designed vent cap helps eliminate unwanted odors from invading your RV's living space. The patented 360 Siphon can only create an updraft, expelling odors and fostering an oxygen-rich environment to speed up waste breakdown. Breathe easier and enjoy a healthy, odor-free living environment with the 360 Siphon. Easy to install and made with a universal design, this vent cap is a clear choice for any RV owner looking to freshen-up their interior with an odor-free environment.Choose from either a black or white 360 Siphon. The universal design makes this a great choice for any RV.Whether you’re on the road or on the water, Lippert supplies a broad array of premium RV, towing, and marine products designed to enhance all of your recreational pursuits. Our team is committed to always thinking about your next journey — pushing the possibilities of our products and services, all to better your time spent outdoors, whenever, wherever, for years to come.