Toyota LC100 Series Heater Window Insert | Trailway Designs
This rear window vent insert is designed for cold-weather vehicle camping and overland use. The panel allows a 3" diesel heater duct hose to pass cleanly through the window opening while maintaining a controlled seal and proper airflow inside the vehicle.An integrated 360-degree interior vent...
Inspiration from this website, no longer available tho.
Amazon.com: Black Plexiglass Sheet - 1/4" Thick Cast (24" x 48") : Industrial & Scientific - https://www.amazon.com/dp/B06XRD2VXQ?ref=cm_sw_r_cso_cp_apin_dp_D4AJ560CZ69HX8H2S7KK&ref_=cm_sw_r_cso_cp_apin_dp_D4AJ560CZ69HX8H2S7KK&social_share=cm_sw_r_cso_cp_apin_dp_D4AJ560CZ69HX8H2S7KK&titleSource=true
Here's some plexiglass 1/4"
Just need a double sided v shape window seal that's affordable and not 50 feet long