No Leaks, No Odors, No Hassle!

"Finally, a sewer cap that actually seals, slipped right over the pipe, clamped down, and zero odor since day one. Exactly what I needed for my rig." - Theodore O.

Why Get Our 4" RV Sewer PVC Caps with Stainless Steel Clamps?

✅ Flexible Fit for Any Pipe Condition: The flexible PVC construction allows the cap to slightly bend or compress, adapting to minor pipe deformations without cracking or breaking during installation. Whether your pipe end is perfectly round or slightly out of shape, these caps conform and seal reliably.

✅ Wide Compatibility & Durability: Fits 4-inch pipes with a 4.5" inner diameter and works with cast iron, plastic, copper, and Schedule 40 steel piping. The PVC material is highly resistant to chemicals found in wastewater, resisting aging and deformation even after extended use in both indoor and outdoor DWV systems.

✅ Complete Kit: Each package comes with 4 PCS of 4-inch PVC caps and 4 durable stainless steel clamps — no extra hardware needed. The snap-on design creates a tight, leakproof seal that blocks odors and prevents sewage leakage, keeping your environment clean during maintenance, repairs, or temporary closures.

⚙️ Specifications:

• Color: Black
• Item Weight: 2.14 lbs
• Material: High-quality PVC
• Size: 4 inches (fits 4.5" inner diameter pipes)
• Compatibility: Fits 4-inch pipes (4.5" inner diameter); compatible with cast iron, plastic, copper, and Schedule 40 steel piping; designed for non-pressure drain, waste, and vent (DWV) systems
• Product Dimensions: 11.14" L × 5.43" W × 4.41" H

📦 Package Inclusions:

• 4 x PVC Caps (4" size)
• 4 x Stainless Steel Clamps