RV Skylight Replacement 18in x 26in Outer Dome - Fits 14in x 22in

In this review the XMK RV skylight replacement is evaluated for owners who need a quick, durable way to restore natural light to camper showers, bathrooms and living areas. The single biggest reason to consider this skylight is its combination of a large 18in x 26in outer flange and a sturdy polycarbonate dome that fits standard 14in x 22in roof openings, making it a practical swap for many RVs, travel trailers and motorhomes without major modification.

Key Features

• Fit: Designed to fit standard 14in x 22in skylight openings, the dome slides in place with an 18in x 26in outer flange that provides broad roof coverage.
• Durable material: Constructed from thicker polycarbonate, the dome offers impact resistance and high-temperature tolerance for longer outdoor life.
• UV protection: A UV coating on the surface helps protect the RV interior from sun damage while still admitting natural light.
• Weather resistance: The generous roof flange gives enough surface to stand up to wind and storms and reduce lifting at the edges.
• Easy installation: Pre-drilled holes and a lightweight design make it easier to replace glass skylights, and it ships with stainless steel screws for convenience.
• Light control options: Available in multiple colors including dark blue, smoke gray, tawny, white and clear to match light transmission and heat filtering needs.

Who It's For

This skylight is a good choice for RV and camper owners who need a direct replacement for a 14in x 22in roof opening and want a durable, lightweight dome that brings natural light into small interiors such as showers and bathrooms. It is especially useful for users who prefer polycarbonate over glass for improved impact resistance and easier installation.

It is less suitable for someone who requires an unusually tall dome profile or a custom-sized opening; several customers noted the dome height can be shorter than some original factory domes, so owners needing a pronounced arch should verify clearance before purchasing.

Pros & Cons

Pros

• Solid construction with thicker polycarbonate that stands up to sun and weather.
• Large 18in x 26in flange offers good sealing surface against wind and storms.
• Easy to install and ships with stainless steel screws for a complete kit.
• Multiple color choices allow control over light and heat entering the RV.

Cons

• The dome profile is relatively low compared with some factory domes, so it may appear short in some installations.

Specifications

Outer cover dimension	18in x 26in
Dome opening dimension	14in x 22in x 4in
Material	Thicker polycarbonate with UV coating
Fits	Standard 14in x 22in RV skylight openings
Included hardware	Stainless steel screws supplied
Color options	Dark blue, smoke gray, tawny, white, clear

Our Verdict

The XMK 18in x 26in RV skylight replacement is a practical, value-minded option for most RV owners who need a reliable polycarbonate dome for a 14in x 22in opening; it balances durability, UV protection and an easy install. Those needing a taller dome profile should check dimensions carefully, but for straightforward replacements this skylight offers good protection and light at a reasonable price.

Frequently Asked Questions

Will this fit my RV opening?
It is designed for standard 14in x 22in skylight openings; confirm your roof cutout measures match before buying.

Is the dome durable in sun and storms?
Yes, the thicker polycarbonate and UV coating improve impact resistance and outdoor longevity, and the large flange helps resist wind lift.

Does it include mounting hardware?
Yes, the package includes stainless steel screws and pre-drilled hole locations to simplify installation.