VIVOSUN Window Vent Kit – Adjustable Sliding Window Seal for 4-inch/6-inch Ducting & 5.9-inch Hose

Overview

The VIVOSUN Window Vent Kit is a practical solution for routing air from portable AC units, inline fans, or dryers through a sliding window. Made from durable PVC, it resists extrusion, aging, and sun exposure, so it stays dependable through hot summers and busy seasons. It works with 4-inch or 6-inch ducting and includes a 5.9-inch hose adapter for flexible connections.

Flexible, window-friendly sizing

Length is adjustable by swapping or combining plates, letting you tailor from about 16.9 inches up to 61 inches. That range helps you size the kit to different sliding window configurations, while avoiding casement windows.

Sealed, energy-conscious design

A distinctive sliding track design helps the kit sit snugly in the window track. A roll of seal tape is included to improve insulation and reduce drafts—helping air flow stay where you want it.

Easy to install and remove

The kit ships with Main Plate, Track Plates, Extension Plate, Hose Adapters, Duct Adapters, bolts, wing nuts, and 10 ft of seal tape. To install, insert the plates into your sliding window and connect the hose or ducting.

Wide compatibility and use cases

Designed to connect with 4-inch and 6-inch ducting and a 5.9-inch hose, it supports venting for inline fans, HVAC units, and even dryers in grow tents, homes, greenhouses, or offices.

What you gain

• Reliable, sun-ready PVC construction that lasts across seasons
• Customizable length for a precise fit in sliding windows
• Improved sealing for reduced air leakage and better venting efficiency
• Rugged, included hardware for quick setup and teardown
• Broad duct compatibility for versatile venting options

How it helps in real life

• Portable ACs and room vents stay connected without leaving gaps
• Grow tents or greenhouses can vent efficiently while maintaining interior climate
• Home or office vents can be redirected without drilling or major remodeling