OXILAM Under Seat Vent Deflectors for Chevrolet Chevy Silverado and GMC Sierra 2014 2015 2016 2017 2018 2019, Rear AC Vent Directional Deflectors for Rear Passenger

Vent extenders work as advertised. Allows for airflow to reach backseat area more effectively.The only slight quirk is that the rubber adapter pieces are slightly too big when putting them over the factory underneath duct. Needs to be just slightly smaller for a more tight fit. But not enough to drop my 5 star review. Recommend this product.

Product works as described. The products quality is nice not some cheap plastic or 3D printed garbage. Only down side is I wish it slipped over the old vent. It’s so close to being able to I might modify the oem vent or the product to make it slip over. NOTE: these are simply meant to butt up against the oem vents. The sleeve is meant to keep the two ends from venting out air. Two down sides I found where 1) the elastic sleeve started to tear as soon as I stretched it over the product. Small pin size hole non the less if it’s supposed to seal the two ends it shouldn’t tear right away. Sleeves also fit a little loose on the oem vent. 2) it does make the vent stick way out. So if you have passengers they would easily step on the vents without thinking about it. Plus side is that siting in the back you can actually feel the air coming out now instead of it just blowing directly down onto the carpet.

I like the 4 pieces, are 2 pairs. If I remember correctly driver side vent is narrower. Passenger side is a wider vent and sleeve. The fitmit is tight, but with a little added effort they will fit perfect ly. Once completed you will question way they were not installed at the GM plants.

I own a 2019 Silverado, both of the ducts under the seats are wide. This kit comes with a wide adapter and another that is smaller. The kit comes with a rubber adapter which allows you to stretch the smaller one over the duct from the truck.I was able to make it work but both adapters are not a perfect fit

These are awesome. Make sure to put them on as far down as they will go over the OEM port. They actually do a great job of deflecting the air up towards the passengers. Poor design by GM helped by this simple but effective device. 2017 GM Silverado 2500HD Crew Cab

Pointless purchase, it slides on with a rubber sleeve and is not very night and aims it at the bottom of the seat .

I was looking for something entirely different when I came across these. They are super simple to install, and add great functionality to the rear seat vents in my 2019 Silverado. The only suggestion I would make is that the rubber sleeves were a tiny bit smaller. On my truck the sleeves fit tighter to the new vents than they do to the vents coming thru the carpet.They work great!

Both sides fit and they work. Didn't leak. Didn't need the rubber seal that came with the product, other than to wrap it around where the new vent slipped over the old. Hated to waste the rubber seals. Air is vented upwards and off the floor as advertised. If you have the seat back a ways covering the vent, it will halve the flow. Too bad they don't have an extender.