Brother TZe421 Black on Red Label Tape – 3/8" (9mm), Genuine Brother Cassette
High-Visibility Labels That Demand Attention
Add impact to your labeling with the Brother TZe421 Black on Red label tape. This eye-catching combination of bold black text on a bright red background is perfect for creating labels that stand out — ideal for safety warnings, electrical panels, inventory tags, or anywhere you need important information to be noticed.
The TZe421 features Brother’s laminated tape technology for exceptional durability. Its protective coating keeps labels readable and intact even in demanding environments exposed to heat, cold, oil, or moisture.
Product Highlights
• Genuine Brother TZe421 laminated tape engineered for long-lasting results
• Black print on red background for high visibility and strong contrast
• 3/8" (9mm) width suitable for cables, tools, containers, and safety signage
• Standard adhesive adheres firmly to flat, clean surfaces
• Resistant to fading, water, grease, and UV light
• Compatible with all Brother P-touch label makers that use TZe tapes
Why Buy from LabelMore
LabelMore is your go-to destination for genuine Brother label supplies. We stock the full line of Brother TZe tapes, including popular specialty colors like this black on red option. Every order ships fast and always includes free shipping, backed by reliable inventory and expert customer service.

The Brother TZE421 p-touch label can be used in the following Brother label printers:
Brother TZe421 9mm Black On Red P-touch Tape, Ptouch label TZ-421
| Also Known As: | TZ421, TZ-421, TZe-421, TZE421 |
| SIZE: | 3/8" (9mm) |
| TYPE: | TZe Standard |
| Length: | 26.2' (8m) |
| COLOR: | Black On Red |
| For Use: | Indoor & Outdoor Applications |
| Withstands: | Abrasions, Hot & Cold, Spills, UV |
| Split Backing: | Yes |
| Thermal TZe Labels: | No Ink Or Toner Required! |
| Temperature Resistant: | -112° (-80°C) To 356° (150°C) |
| UPC: | 12502625896 |
| UNSPSC: | 55121611 |
