Durable EPDM rubber window edge glazing weatherstrip that wedges between the window glass and the retaining metal frame to provide a secure, weathertight seal. Replaces shrunk, cracked, or hardened original vinyl and plastic window edge glazing. Protects against harsh weather, and eliminates noise and vibration. Hand crafted and made in USA.
The Steele Rubber Products 90-3440-244 is a 19/32" tall by 1/4" wide EPDM rubber window edge weatherstrip that wedges between the window glass and the retaining metal frame to act as a glazing weatherstrip — also known as window edge glazing or window channel glaze. This is a fundamentally different type of seal from surface-mount or channel adhesive weatherstrips: rather than bonding to a surface, the window edge weatherstrip is pressed into the gap between the glass pane and the surrounding metal retention frame, gripping the glass edge and the frame channel simultaneously to hold the glass securely in place while sealing out weather, water, noise, and vibration.
The original window edge glazing in most RVs is extruded from vinyl or plastic. Over time and through repeated outdoor temperature cycling, these original glazing strips shrink, harden, crack, and pull away from the glass edge — creating gaps that allow water infiltration, wind noise, and glass rattle. The 90-3440-244 replaces that original glazing with durable EPDM rubber, which resists ozone, moisture, and UV exposure and will not shrink like the vinyl original. At 30 ft, this strip provides enough material to re-glaze multiple windows or complete a full re-glaze of larger window perimeters in a single purchase. Available in a 30 ft length and by the foot, backed by Steele Rubber Products’ hand-crafted quality and Guaranteed to Fit promise.
Wedges between the window glass edge and the retaining metal frame — no adhesive required; the profile grips both glass and frame channel for a secure mechanical hold
Resists ozone, moisture, and UV exposure — will not shrink, harden, or crack like the original vinyl or plastic window edge glazing it replaces
EPDM rubber cushions the glass pane within the metal retention frame, stopping glass rattle and road vibration transmission through the window
Full 30 ft strip provides sufficient material to re-glaze multiple windows or complete a large single-window perimeter. Hand crafted by Steele Rubber Products
The 90-3440-244 window edge weatherstrip is designed for RV window frame systems where a press-in glazing strip holds the glass pane within a retaining metal channel. Typical applications include: Replacement Window Edge Glazing: The primary use is replacing original factory vinyl or plastic window edge glazing that has shrunk, hardened, cracked, or pulled away from the glass edge — restoring a weathertight seal around the glass perimeter Crank-Out and Awning Windows: Commonly used in crank-out, awning-style, and fixed RV windows where the glass is held in a metal retention frame by a perimeter glazing strip rather than bonded with adhesive Slideout Room Windows: Re-glazing windows on slideout room walls where the glass-to-frame seal is critical to preventing water infiltration when the room is extended Travel Trailers, Fifth Wheels, and Motorhomes: General-application press-in window glazing for a wide range of RV body types where the retaining frame channel accepts a 19/32" H x 1/4" W glazing profile Noise and Vibration Reduction: Even where the original glazing has not fully failed, replacement with fresh EPDM rubber can significantly reduce glass rattle and road vibration noise inside the coach No specific RV model fitment list is available for this part. The 90-3440-244 is a general-application window edge glazing. Always verify that the 19/32" H x 1/4" W profile matches the gap between your glass edge and retaining frame before ordering. Measure the existing glazing strip or the open channel width before purchasing.
Window edge glazing weatherstrips must match the channel opening between the glass and the retaining metal frame. An incorrect profile size will either be too loose to hold the glass securely or too wide to press into the frame channel. • Measure the existing glazing strip: Before removing old glazing, measure the height and width of the existing strip. The 90-3440-244 is 19/32" H x 1/4" W. • Measure the open channel: If the old glazing has already been removed, measure the width of the gap between the glass edge and the inner face of the retaining metal frame • Compare to available profiles: Steele Rubber Products offers window edge glazing in multiple heights (3/8", 11/32", 19/32", 5/8", 3/4", and others) — select the profile that matches your existing channel dimensions • Work around the full perimeter: On large windows, plan the strip layout before pressing in to avoid short joints at visible corners • No adhesive is used: The press-in profile grips mechanically — the glass and frame channel provide retention
Step-by-Step Installation: 1. Remove Old Glazing: Carefully pry the existing vinyl or rubber glazing strip out of the channel between the glass and the retaining metal frame, working around the full perimeter 2. Clean the Channel: Remove any residue, debris, or fragments of old glazing from the glass edge and the retaining frame channel 3. Verify Profile Fit: Confirm the 19/32" H x 1/4" W profile matches the channel dimensions before proceeding 4. Measure and Cut: Measure the perimeter length required and cut the strip to length using a sharp utility knife 5. Begin at a Corner: Start pressing the strip into the channel at one corner of the window frame, working steadily around the perimeter 6. Press Firmly Into Channel: Use consistent, firm pressure to seat the strip fully into the gap between the glass edge and the retaining metal frame — a plastic trim tool or blunt instrument can help press the strip into tight sections 7. Work Continuously: Avoid stopping mid-run; keep working around the perimeter to maintain consistent seating depth 8. Trim to Fit: At the closing joint, cut the strip cleanly to butt against the starting end with no gap or overlap 9. Inspect: Run a finger around the full perimeter to confirm the strip is fully seated and flush with the frame surface
In The Package: • One (1) continuous 30 ft strip of 90-3440-244 EPDM Window Edge Glazing Weatherstrip Recommended Supplies (Not Included): • Sharp utility knife or razor blade for cutting strip to length • Plastic trim removal tool or blunt pry tool for removing old glazing and pressing new strip into channel • Tape measure for measuring window perimeter lengths • Mild cleaner or rubbing alcohol for cleaning glass edge and retaining frame channel before installation
Steele Rubber Products offers window edge glazing weatherstrips in a range of heights to match different RV window retaining frame channel depths. Selecting the correct height is essential — a profile that is too short will not fill the channel and glass will move; a profile that is too tall will not press into the channel at all. Measure the existing glazing strip height before removal, or measure the open channel depth if the old glazing has already been removed. Compare to the available profiles: • 3/8" — Shallow channel — smaller window frames • 11/32" — Shallow vertical channel — Hehr and similar window systems • 19/32" (This Item) — Mid-height channel — general RV window systems • 5/8" — Similar mid-height — select window systems • 3/4" — Deeper channel — larger window frames including some Hehr systems Tip: If uncertain between two adjacent sizes, the taller profile can sometimes be trimmed to fit; the shorter profile cannot be extended. When in doubt, purchase a short length by the foot to verify fit before committing to a full 30 ft strip.
Window edge glazing failure is one of the most overlooked sources of water infiltration in RVs. The original vinyl or plastic glazing shrinks and hardens predictably over time — often years before the window itself needs replacement. Replacing worn glazing with EPDM rubber is a cost-effective way to restore a weathertight window seal, eliminate glass rattle, and prevent the water infiltration that leads to costly wall and substrate damage.