WanDwel Aluminum RV Sewer Vent Cap for 1"–2-3/8" OD Pipe — Powder-Coated, Screened Roof Replacement

WanDwel's Aluminum RV Sewer Vent Cap is a durable metal roof vent replacement that fits 1" to 2-3/8" outer diameter pipes and includes screens, screws, and butyl tape for a weatherproof installation.

Replacing brittle plastic roof vents with a corrosion-resistant aluminum cap reduces cracking, sun damage, and insect intrusion on RVs, travel trailers, and motorhomes. This two-piece kit arrives pre-assembled and ready to install, offering a rugged, long-term alternative for venting sewer lines and preventing odors and debris from entering your RV cabin.

How does this vent cap improve durability compared to plastic OEM caps?

The aluminum construction resists impacts, UV degradation, extreme cold, and high heat that often cause plastic caps to crack and yellow. A powder-coated finish further protects the metal from weather, while included stainless screws prevent fastener corrosion.

• Premium aluminum body resists hail, -40°F cold and 120°F heat
• UV-resistant powder coat prevents fading and surface breakdown
• Corrosion-proof stainless screws included for long-lasting attachment

Will this fit my RV vent pipe and how airtight is the install?

The inner diameter is sized to engage pipe OD from 1" up to 2-3/8", while the 5.3" base covers old screw marks and creates a consistent sealing surface. The kit includes butyl tape for an airtight seal that limits sewer gas migration when installed properly and sealed with silicone around the edges.

• 3.8" inner diameter grips 1"–2-3/8" pipes securely
• 5.3" base covers existing mounting holes and cosmetic damage
• Butyl tape included for primary sealing; silicone recommended for final waterproofing

Does the cap keep bugs, leaves, and odors out?

An integrated mesh screen prevents insects and debris from entering the vent while allowing gas to escape. The design balances ventilation with protection so the plumbing can breathe without letting pests or road debris migrate into the pipe.

• Built-in mesh screen blocks insects and leaf debris
• Airtight butyl tape reduces odor seepage through the roof penetration
• Top cover design sheds water and road spray efficiently

How easy is installation and what hardware is supplied?

Installation is straightforward: the cap comes pre-assembled with a snap-on top cover and six pre-drilled mounting holes that align with standard RV vent bases. The package supplies screws and tape so you can often swap it in within about ten minutes, with silicone recommended for a final weatherproof seal.

• Pre-assembled top cover and snap-on mechanism for fast setup
• Six pre-drilled holes match common vent patterns for easy alignment
• Includes 2 caps, 12 stainless screws, and 2 butyl tape rolls (0.5" x 15.75")

Who is this for: RV and motorhome owners who want a reliable, long-lasting replacement for failing plastic sewer vent caps. It's ideal for frequent travelers, those in extreme climates, or anyone seeking a low-maintenance upgrade that resists cracking, insect intrusion, and weathering while providing an effective venting solution.