Racks, Screw Caps, PPC, Natural — 222-5450-08S | 10/Bag | Caplugs® Evergreen

Quick Reference

Technical Narrative

The Caplugs® Evergreen 222-5450-08S is a Slide-Fix™ PAP Jar with Natural Cap in PPC (Natural body), sterile, 10/Bag Assembled. The Slide-Fix™ PAP jar is a Coplin-style slide staining jar — a vertical-well container designed to hold standard microscope slides (25 × 75 mm) on edge in a rack inside the jar body while immersed in staining solution, fixative, or reagent. Natural caps are the default — used when no color differentiation is required or when a single staining solution fills all jars in the workflow. The PPC jar body is fully transparent, allowing visual monitoring of reagent fill level and slide position from outside the jar without removing the cap.

PPC jar construction: optical clarity for visual slide and reagent monitoring, full chemical resistance to formalin, alcohols, xylene substitutes, hematoxylin, eosin, and standard histology reagents, secure screw cap for reagent containment and volatile organic solvent retention. Sterile 10/Bag assembled. BPA-free, phthalate-free, FDA-compliant,

Procurement economics: $165.30/Bag (10 jars), $16.5300/jar. Cap color set: 222-5450-B8S (Blue Cap); 222-5450-E8S (Orange Cap); 222-5450-G8S (Green Cap); plus Fuschia (222-5450-K8S). LabSupplies.com ships from USA inventory, typically same business day.

Technical Specifications

Slide-Fix™ PAP Jar — Natural Cap Applications

The Slide-Fix™ PAP jar is compatible with the following histology, cytology, and molecular pathology slide staining workflows.

Chemical Resistance — Polypropylene Copolymer (PPC) — Histology Reagent Compatibility

Compatibility reference for PPC at typical laboratory conditions.

Clinical & Research Laboratory Applications

Caplugs® Evergreen Slide-Fix™ PAP jars with natural caps serve anatomic pathology, cytology, and molecular pathology laboratories performing microscope slide staining workflows. The PAP jar (Coplin-style) is the standard vessel for immersion slide staining — the jar holds up to 10 slides on edge in a grooved rack insert while immersed in the staining reagent, allowing uniform reagent contact with the slide surface during timed immersion steps. PPC provides full chemical resistance to all standard histology reagents: 10% neutral buffered formalin, ethanol dehydration series, hematoxylin, eosin, xylene substitutes, and IHC antibody diluents and wash buffers. The natural cap color allows the staining bench technician to identify each jar's reagent without reading the label — critical during multi-step staining runs where jars are sequentially positioned on the bench and a labeling error or mistaken jar could cause a staining failure on a diagnostic slide. The Slide-Fix™ color set (Natural, Blue, Orange, Green, Fuschia) provides five visually distinct cap colors for differentiation of up to five reagents simultaneously on the staining bench.

U.S. Manufacturing, Quality & Institutional Procurement

Caplugs® Evergreen products are manufactured in the United States under ISO 9001 quality management from FDA-compliant, food-contact-grade resins. BPA-free, phthalate-free, and latex-free, with material-disclosure documentation supporting CAP, CLIA, and ISO 15189 laboratory accreditation audits.

LabSupplies.com is an authorized dealer for the full Caplugs Evergreen catalog and ships directly from USA inventory — typically same business day for stocking SKUs. We offer below retail pricing on volume orders, tiered institutional and academic pricing, and direct support for grant-funded laboratories and government procurement channels. Lab managers and procurement officers can request a written quote or speak with a product specialist directly from our sales engineering team.

Frequently Asked Questions

Are the Slide-Fix™ PAP jars sterile?

Yes. Sterile — packed 10/Bag Assembled (jar pre-mated with cap).

How many slides does a PAP jar hold?

Caplugs Evergreen Slide-Fix™ PAP jars hold up to 10 standard 25 × 75 mm microscope slides on edge in the internal rack groove. Slides are loaded vertically on edge, immersed in the reagent through the jar body.

Why are Slide-Fix™ PAP jars offered in multiple cap colors?

The five-color cap set (Natural, Blue, Orange, Green, Fuschia) provides a color-coding system for reagent identification on the staining bench. Each color can be assigned to a specific reagent, concentration, or protocol step — allowing the staining technician to identify the correct jar by cap color during multi-step sequential staining runs without reading the label. This reduces staining errors caused by jar transposition on a busy histology bench.