Premium All-Aluminum Design: Made from high-quality aluminum, this RV plumbing vent cap replaces damaged or plastic RV plumbing vents, offering unmatched strength and reliability for your motorhome adventures. Weatherproof & UV-Resistant: Say goodbye to frequent replacements! Designed to withstand extreme heat, freezing cold, heavy rain, and UV rays, this camper sewer vent cover keeps your system protected in all conditions, giving you peace of mind whether you're inside or outside. Complete installation accessories kit: Each vent cap includes six stainless steel screws, one roll of white butyl tape (0.12" thick x 0.5" wide x 15.75" long), and one filter screen. Built-In Filter Screen: Protect your trailer plumbing system from leaves and other debris. It ensures smooth airflow while keeping unwanted elements out, so your motorhome sewer system remains functional and reliable. Designed for pipes with diameters ranging from 1" to 2-3/8", with an inner diameter of 3.8", a base diameter of 5.3", and a height of 3". Enhance your RV, camper, trailer, or motorhome with this durable aluminum roof vent cap, designed as a reliable replacement for plastic covers. Perfect for outdoor use, it protects your plumbing and sewer system from debris while ensuring smooth airflow. A must-have RV accessory for your next adventure!