Does Advent Air RV AC Unit fit Standard RV Vent Hole in Ceiling

Updated 05/05/2025 | Published 05/20/2020

Question:

on your item#acm135ch will it fit in the stander vent hole on a enclosed trailer

asked by: Tony A

Helpful Expert Reply:

Yes the Advent Air RV Air Conditioner w/ Air Distribution Box, Start Capacitor, and Heat Strip # acm135ch that you referenced designed to fit the standard 14 inch by 14 inch roof vent hole on enclosed trailers and RVs.

For more info on this check out the install video link I attached.

expert reply by: Jameson C

Chuck

5/3/2025

This is incorrect - This unit is designed for a 14.25" x 14.25". There are older RVs with 14x14 cutouts. This unit will require you to enlarge a 14x14 inch cutout.

Jameson C.

5/5/2025

@Chuck Generally the 14 inch and the 14-1/4 inch square openings are considered to be the same but I hear what you mean. Typically if the 14.25 inch opening is required you can simply open it up a little bit.