OUTPRIZE · Creator Connections
OUTPRIZE horizontal sliding RV window: a horizontal slider only if your wall matches that listing
Tinted horizontal sliders with a screen and a trim ring. The 21-by-14 listing says the rough opening is 21 by 14 and that it suits a 1/8-inch wall, with a note that thicker walls have to be cut back.
As an Amazon Associate I earn from qualifying purchases. Affiliate disclosure. Prices change, so we link out instead of printing them.
7.4/10 RigRank score
Horizontal sliders are the windows people picture on a cargo conversion: wide, short, and sliding sideways. OUTPRIZE has a long list of openings, and two of the sizes exist as a two-pack. Every ASIN below was in stock when we checked. Some sizes are listed twice under different ASINs. Pick one live listing and match the rough opening in the title.
The wall thickness is the trap. On the 21-by-14 listing, OUTPRIZE says the rough opening is 21 wide by 14 high and that it suits a 1/8-inch wall. Thicker walls, they say, may need an inward cut. Thinner walls may need wood strips. A 1/8-inch wall is sheet metal. It is not a laminated travel-trailer wall and it is not the 1.5-inch wall the frameless 14-by-22 listing asks for. If you only remember one thing from this review, remember that these families are not interchangeable.
We did not open every size's bullet list. The 21-by-14 page also claims tempered glass, an anodized frame, a screen, a ribbed seal, and a trim ring. Assume you must read the size you buy, because a 42-inch window is a different chunk of wall even if the brand voice is the same.
Score is lower than the frameless family on purpose. A window line whose representative listing is for 1/8-inch walls will be wrong for a lot of readers who searched 'RV window.' If your wall is that thin and the opening matches, the product is fine. If it isn't, walk away.
What the listing actually says
| 21×14 wall | About 1/8 in, per that listing |
|---|---|
| 21×14 opening | 21 W × 14 H in rough |
| Style | Horizontal slider with screen |
| Checked | Live Amazon listing on 2026-11-10. In stock that day. |
Works in its favor
- Many openings, including two-packs of the smaller sliders
- Screen, tint, and trim ring are part of the family description
- The 21-by-14 listing tells you the wall is 1/8 inch instead of hiding it
Holds it back
- 1/8-inch wall on the size we read. Thicker walls need surgery
- Duplicate ASINs for 30×20 and 30×24. Don't buy both by accident
- We did not confirm every size's wall spec. Read the listing
Which listing to open
- 21 × 14 horizontal B0DHRN5KRC on Amazon
- 21 × 14, two-pack B0CYBVTG54 on Amazon
- 24 × 15 horizontal B0FD9VHDL9 on Amazon
- 24 × 20 horizontal B0D6VLRGLD on Amazon
- 24 × 20, two-pack B0CYC1P9XX on Amazon
- 30 × 20 horizontal B0D456CZM1 on Amazon
- 30 × 20 horizontal, alternate listing B0FH9T6Q5C on Amazon
- 30 × 24 horizontal B0D44QDSL4 on Amazon
- 30 × 24 horizontal, alternate listing B0CLRNYT7K on Amazon
- 42 × 12 horizontal B0FD9V643H on Amazon
- 42 × 22 horizontal B0FD9TXDG7 on Amazon
Questions worth answering first
Why are there two ASINs for 30 by 20?
Amazon has two live listings with the same size in the title. Compare the wall thickness and the overall dimensions on each page. Buy one.
See where this sits in the Best RV Windows in 2026 roundup.