Replacement AC Unit for a 2017 Grand Design Reflection 303 RLS
Updated 08/18/2025 | Published 07/23/2025
Products Featured in This Question
Question:
Will the advent adv26sr ac fit and work for my 2017 reflection 303 rls.
asked by: Johnnie M
Expert Reply:
Hey Johnnie. The Advent Air RV Air Conditioner item # ADV26SR will indeed work in your 2017 Grand Design Reflection 303 RLS but you'll also need the compatible air distribution box. This AC unit has the new R32 refrigerant which are not compatible with the old R410A units. Plus their parts are being phased out.
The Advent Air RV Air Conditioner System - Manual - 15,000 Btu - Black - R32 item # ADV42SR has the item # ADV26SR AC unit, along with an air distribution box, and start capacitor. This kit works with ductless set ups and has everything you need to replace your old system and upgrade.
The Advent Air RV Air Conditioner System - Single Zone - 15,000 Btu - Black - R32 item # ADV62SR is the one you'll need for a ducted set up. It comes with a thermostat.
What kind of of AC system do you have now and is it ducted or ductless?
Johnnie M.
8/15/2025
It was ducted wih open dump vevt. the new unit works great. Thanks for the help.
Jerred H.
8/18/2025
Product Page this Question was Asked From
Advent Air RV Air Conditioner System - ADB Controls - Non-Ducted - 15,000 Btu - Black - R32
- RV Air Conditioners
- Complete AC System
- Cool Only
- 15000 Btu
- Standard Height
- Single Zone
- Rooftop
- Non-Ducted
- Black
- Advent Air
more information >
Continue Researching
- Shop: Advent Air RV AC System w/ Wall Thermostat - 15,000 Btu - Ducted/Non-Ducted - Black - R32
- Shop: GE Appliances Low-Profile RV AC System w/ Heat Pump - 15,000 Btu - Ducted - White - R32
- Shop: Air Distribution Box with Built-In Thermostat for Advent Air RV Air Conditioners - White - R32
- Search Results: furrion
- Search Results: furrion ducted
- Shop: GE Appliances HE Low-Profile RV AC System w/ Heat Pump - 13.5K Btu - Non-Ducted - White - R32
- Video: Setting Up Your Advent Air RV AC - 2021 Keystone Passport SL Series Travel Trailer
- Video: An In-Depth Look at the Advent Air RV AC
- Shop: Advent Air Low Profile RV Air Conditioner - 15K Btu - Ducted or Non-Ducted - R32 - AC Unit Only
- Shop: Start Capacitor for Advent Air RV Air Conditioners - R32
- Q&A: Does The Ducted Air Distribution Box LC64DX Work With Furrion Chill Cube With Heat Pump?
- Shop: Advent Air RV Air Conditioner - 15,000 Btu - Ducted or Non-Ducted - Black - R32 - AC Unit Only
- Q&A: Do You Have a Ducted Replacement AC Unit for a 2021 Forest River?
- Q&A: Best Replacement for a Dometic DuoTherm B59516 Brisk Air II Air Conditioner
- Q&A: Replacement for Dometic Duo 13k on 2008 Keystone Passport Ultra Lite 285RL
- Video: Complete Breakdown of the Electric Heat Strip for Advent Air RV Air Conditioners
- Q&A: Replacing Airxcel AC on 2012 Durango 1500 5th Wheel
- Video: Start Capacitor for Advent Air RV Air Conditioners Review
- Search Results: rv air conditioners
- Search Results: advent air distribution box
- Q&A: Does Furrion Chill Air Conditioner Fan Run Constantly on Cooling Mode
- Q&A: Do I Need a Thermostat w/the Ducted Air Distribution Box for Furrion Chill Cube RV Air Conditioners?
- Video: Review of Advent Air Air Distribution Box With Wall Mounted Thermostat - ADV98SR
- Video: Review of Advent Air Electric Heat Strip RV Air Conditioner - ADV34QR
- Video: Advent Air RV Air Conditioner System Installation Guide - 2007 Heartland RV Cyclone Fifth Wheel
- Search Results: softstartrv rv ac soft start
- Search Results: rv power inverter
Jerred H.
8/15/2025
Hey Johnnie, did you figure out whether your current AC system is ducted or ductless? I'm asking to make sure we can help others who might be in the same boat. Let me know if you need any more help!