V21 Soft Push-in Rubber Gasket for Windows
High-quality rubber seal strip designed for aluminum window frames.
✔ 290 feet roll – ideal for large jobs and bulk installations
✔ Strong grip for secure glass hold
✔ Weather-resistant and durable
✔ Flexible for easy installation
Available in 4 colors:
• White (V21-WH)
• Black (V21-BK)
• Gray (V21-GR)
• Almond/Tan (V21-ALM)
Perfect for window repair, replacement, and professional glazing work.
Need a smaller quantity? Check our 25 ft roll version.
Compatibility & Compression Guide
| What to compare | Before choosing V21 |
|---|---|
| Aluminum-frame compatibility | V21 is intended for aluminum window frames. Frame material alone does not confirm fit: compare the existing gasket's cross-section and dimensions with the V21 profile and confirm the frame manufacturer's requirements. |
| Measured compression / crush | Measure the glazing gap and the existing gasket's profile dimensions. Ask for the V21 profile dimensions and the manufacturer's specified working compression for your application before ordering. No verified V21 compression percentage or crush range is provided here; do not assume a universal target. |
| Fit checks | A loose, distorted, or difficult-to-seat gasket needs further assessment, not an automatic switch to a thicker or thinner profile. Do not force it into place. Confirm the profile and glazing requirements with the frame manufacturer or a qualified glazing professional. Appearance or lack of rattle alone does not verify a safe or weather-tight installation. |
| Color choices | White (V21-WH), Black (V21-BK), Gray (V21-GR), and Almond/Tan (V21-ALM). Choose the desired finish separately from confirming profile fit. |
| Roll length | This listing is for a 290-foot roll. Measure the total gasket runs required for your project and allow for cuts and waste rather than estimating by window count alone. |
| When V21 is appropriate | Choose V21 when its profile and dimensions have been confirmed as a match for your aluminum window glazing system. If the existing profile is unknown or differs, confirm compatibility before ordering. Suitability for a particular frame model or glass configuration is not established by this listing. |
Need help checking the match? Contact us with clear photos of the existing gasket's cross-section, measured dimensions, and the frame manufacturer and model, if known.