Wosijm RV Entry Door Window Kit 12×21 Inner Glass Black — Low-Profile Shade & Water-Diverting Frame

Wosijm 806621 is a complete RV entry door window kit with a low-profile sliding shade, sized for a 12" × 21" inner glass opening and finished in black.

This ready-to-install replacement window assembly fits many RV entry doors and is made with a large glass area for daylight, a smooth sliding sunshade for privacy, and a frame designed to divert water away from the door. The kit is compatible with Lippert-style RV doors and includes pre-drilled holes plus all mounting hardware so you can swap it into place with minimal tools.

How large is the viewing area and what light does it provide?

The inner glass dimensions are 12" wide by 21" high, while the overall outer frame measures 24.75" × 15.75". Because the glass occupies more than 70% of the window's face, this kit brings ample natural light into the entryway without sacrificing door structure.

• Inner glass: 12" W × 21" H for a tall, narrow view.
• Outer frame: 24.75" × 15.75" to match common RV door openings.
• Over 70% glass-to-frame ratio for brighter interiors.

Will this fit my RV or replace my old entry door window?

The kit is designed with broad compatibility in mind, fitting many RVs, motorhomes, trailers and campers, and it also works as a retrofit for older entry or storm door sills. Check your cutout dimensions against the outer frame size to confirm a proper fit before purchase.

• Compatible with Lippert-style RV entry doors and similar profiles.
• Can retrofit storm doors, screen doors, and worn sills.
• Verify your door cutout matches 24.75" × 15.75" outer size.

How difficult is installation and what tools are required?

Installation is aimed at DIYers: the frame arrives pre-drilled and includes mounting hardware so you typically only need a screwdriver. The straightforward installation reduces the need for professional help and can often be completed in a single session.

• Pre-drilled holes speed alignment and fitment.
• All necessary screws and accessories included in the kit.
• Basic hand tools—screwdriver and sealant—are usually sufficient.

What weather protection and privacy features does the kit provide?

The frame incorporates a water-diverting profile to channel rain away from the door interior, helping to reduce moisture intrusion and drafts. A low-profile sunshade slides smoothly to adjust light and privacy without catching or binding.

• Engineered drainage channels guide water off the frame.
• Sealing details help limit drafts and moisture damage.
• Low-profile sliding shade for adjustable privacy and sun control.

Who is this for? If you own an RV, trailer or camper and need a neat, high-glass replacement window for the entry door—especially owners of Lippert-style doors—this Wosijm 806621 kit is built for quick DIY replacement and improved daylighting. It’s a practical choice for renovators who want a larger viewing area, a smoother privacy shade, and a frame shape that sheds water effectively without professional installation.