Precision Fit Adapter for Sub-1oz Gold Assay Cards – Add-on for 1oz Universal Assay Card Box

Upgrade Your Storage Versatility - You already love our Universal Assay Boxes for their ability to hold both standard and thick plastic 1 oz assay cards as well as Sub-1oz that use the same size cards. Now, you can customize your storage even further.

These custom-engineered Assay Adapters slide directly into the existing slots of your box, allowing you to securely store smaller (less then 50.5mm wide), "sub-1oz" gold assay cards (such as 1g, 5g, 10g, and 20g sizes) and some 1oz like the IGR 1oz that are typically too narrow for our standard slots.

Why You Need These:
No More Rattling: Keeps smaller cards upright and centered, preventing them from sliding side-to-side.
Seamless Integration: Designed specifically to friction-fit into our existing box architecture.
Organize Your Entire Stack: Mix and match 1 oz cards and fractional cards in the same storage box.

Easy to Use: Just slide the adapter in—no tools or glue required.

📐 Specifications & Compatibility Compatible With: Only fits the Maker Shed3D Universal Assay Storage Boxes.

Supported Cards: Fits most sub-1oz assay cards (Valcambi, PAMP, Royal Canadian Mint, IGR, etc.) that are narrower than the standard 1 oz footprint.

⚠️ PLEASE NOTE: This listing is for the Internal Adapters only. The storage box is sold separately. Gold Bars not included, for illustration only.