RV Plumbing Vent Caps (2 Pcs) – Fits 1″ to 2-3/8″ OD Pipe
$13.99 on Amazon.com (as of October 14, 2026, 7:55 PM EST) View details ↗
Restore the integrity of your recreational vehicle's plumbing system with this pair of Carvmpin RV plumbing vent caps. Designed as a universal replacement for worn or damaged roof vents, these caps feature a 3.8-inch internal diameter and a 5.3-inch base, ensuring a secure fit for pipes ranging from 1-inch to 2-3/8-inch in outer diameter. This broad compatibility makes them an ideal solution for a wide variety of standard RV, camper, and motorhome roof vent configurations.
Beyond simple fitment, these vent caps provide essential protection against environmental elements and odor intrusion. The design effectively blocks sewer gases, rain, and snow from entering the plumbing system, maintaining a fresh and dry interior environment regardless of weather conditions. Constructed from heavy-duty, UV-resistant plastic, these vents are engineered to withstand prolonged exposure to sunlight, wind, and extreme temperature fluctuations without cracking or fading, ensuring long-term durability and performance.
Installation is straightforward and requires no specialized tools. The package includes six screws to secure the cap to the roof surface. For a complete waterproof seal, it is recommended to apply silicone sealant (not included) during installation. This process typically takes less than five minutes, allowing you to quickly renew your RV's vent system and restore like-new functionality to your vehicle.
| Pipe Compatibility | 1″ to 2-3/8″ OD |
|---|---|
| Internal Diameter | 3.8″ |
| Base Diameter | 5.3″ |
| Material | UV-resistant plastic |
| Package Contents | 2 vent caps, 6 screws |






