46DVA HRCS SIMDUR 4 Inch Round Horizontal Termination Cap Heavy Duty Galvanized Finish DirectVent Pro Round Cap With Aluminum Square Base 4 X 6 5/8 Inch Duct Size Outdoor Fireplace Venting System

4-Inch Round Cap with Aluminum Base for Venting
✔️ Inner diameter 4 in, outer diameter 6-5/8 in, 11x11 in base

The 4-Inch Round Horizontal Termination Cap is a galvanized aluminum cap with a square aluminum base, built for through-the-wall vent terminations in direct vent gas systems. It’s designed for outdoor venting of fireplaces, stoves, and heaters, helping seal the vent while keeping out rain and debris. Only available in aluminum, this cap should be used with approval from the appliance manufacturer and installed per instructions.

✅ Inner diameter: 4 in (101.6 mm); outer diameter: 6-5/8 in (168.3 mm)
✅ Overall dimensions: 11 in L x 11 in W (279.4 mm x 279.4 mm)
✅ Material: galvanized finish with aluminum square base
✅ Through-the-wall termination design for direct vent gas appliances
✅ Pack size: single unit
✅ Through-the-wall install with proper clearances per instructions

💡 What is a round termination cap used for in direct vent systems?

A round termination cap seals the vent at the exterior wall, keeps rain out, and directs exhaust away from the structure for safe, efficient venting.

- round termination cap for direct vent gas appliances - weatherproof through-wall vent termination for exterior use - galvanized aluminum cap with square base for outdoor installs - installation considerations: follow manufacturer approvals and clearances ✝️