Microscope slide boxes include an inventory card — a paper insert that catalogues the contents of the box by slide position. Over time in active collections these cards fill up, get damaged, or are lost. The Heathrow Scientific Replacement Inventory Cards restore the organization system of existing slide boxes without requiring a new box. Available in two sizes: 120740 for 25-place boxes (5.3 × 3.1 in, Pack of 10) and 120741 for 100-place boxes (7.9 × 6.1 in, Pack of 10). Compatible with Heathrow Scientific 15990-series and 15991-series slide boxes respectively. Features and Benefits Replacement Cards — Restore Existing Box Organization: When the original inventory card fills up or is damaged, replacement cards extend the usable life of the slide box without requiring a new box purchase. Sized for 25-Place and 100-Place Boxes: 120740 fits 25-place boxes (5.3 × 3.1 in); 120741 fits 100-place boxes (7.9 × 6.1 in). Match card SKU to box capacity. 10 Cards Per Pack — Stock for Multiple Boxes: A single pack restocks 10 boxes simultaneously — practical for labs that run multiple concurrent collections or that reset all boxes at the start of each study period. Write-and-Overwrite Cardboard: White cardboard accepts pencil, ballpoint, and fine-tip marker — write slide position IDs directly, erase pencil entries, or use a fresh card when the project changes. No printer required. Specifications Property 120740 (25-Place) 120741 (100-Place) Compatible Box 25-Place slide boxes (15990 series) 100-Place slide boxes (15991 series) Card Dimensions 5.3 × 3.1 in (13.4 × 8 cm) 7.9 × 6.1 in (20 × 15.5 cm) Material Cardboard (White) Quantity Pack of 10 Price $10 $13 Laboratory Applications Long-term slide collections where boxes are reused across multiple projects and the original inventory cards have been fully used Institutional and clinical labs where slide boxes cycle through multiple cases and a fresh inventory card is needed for each new case or batch Teaching labs where boxes are reused each semester and a clean inventory card is standard procedure at the start of each course Any lab that uses Heathrow 15990 or 15991 series slide boxes and needs a supply of replacement cards on hand Frequently Asked Questions Which card fits which box?120740 (5.3 × 3.1 in) fits 25-place boxes in the 15990 series. 120741 (7.9 × 6.1 in) fits 100-place boxes in the 15991 series. Do not mix sizes. Are these compatible with the polycarbonate boxes (120316, HS15988H)?120740 cards are designed for the 15990-series 25-place boxes. The 120316 polycarbonate 25-place box may accept the same card size — measure the interior of your box before ordering. Contact us if unsure. Can I print on these cards with a laser printer?The cards are standard white cardboard — suitable for handwriting. For laser printing, you would need to confirm printer feed compatibility with individual card stock. Most labs write slide position data by hand. Quality Assurance Heathrow Scientific replacement inventory cards are manufactured from white cardboard cut to the specified dimensions for the 25-place and 100-place slide box series. Pack of 10 per SKU. Ordering Authorized VEE GEE Scientific dealer, ships from USA inventory. Serving academic, government, and research laboratories nationwide.
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