Heavy Duty Record Storage Box

Our brawny crème color pH neutral corrugated B-flute board record boxes are acid-free, lignin-free, buffered and shipped flat. The easy to assemble box has triple sidewalls and double bottom to make these cartons extra durable. Passes Photo Activity Test (PAT).

Specifications:

• 350 lb. Board test
• 55 Edge Crush test (ECT)
• pH 8.5+/-.5
• 3% calcium carbonate buffer