• 1 perforated STO-K tray reusable
• Ideal for larger anatomical cases
• Distortion-free impressions under pressure
• Enhances material retention and detail accuracy
• Square STO-K style supports a broader anatomical fit

The GC America #U-3-O Perforated STO-K Tray - 263673. When your case calls for full-arch upper impressions with maximum precision and retention, the GC America #U-3-O Perforated STO-K Tray delivers exactly what you need.

Designed with the signature STO-K square form, this tray offers exceptional fit and performance for larger upper arches especially in restorative and prosthetic procedures. If you're looking for the best perforated full-arch tray for accurate upper impressions, the U-3-O tray is an ideal option. Constructed from durable aluminum, it maintains its shape under pressure, eliminating distortion and helping you capture fine anatomical details.

The perforated design locks in impression materials securely, ensuring clean removal and reducing voids or pull-back. As one of the best STO-K aluminum trays for large upper arch impressions, it features precise GC-engineered dimensions and is built for repeated clinical use. Whether you?re working on complex restorations or standard full-arch impressions, this tray helps you get it right efficiently and reliably.