Caplugs® Evergreen
Caps, Screw Caps, HDPE, Purple — 300-3531-U20 | 1000/Bag | Caplugs® Evergreen
Caps, Screw Caps, HDPE, Purple — 300-3531-U20 | 1000/Bag | Caplugs® Evergreen
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Slide-Fix™ PAP Jar Screw Caps, HDPE, Purple — 300-3531-U20 | 1000/Bag
| Quick Reference — 300-3531-U20 | |
|---|---|
| Sub-brand | Slide-Fix™ (Caplugs® Evergreen) |
| Jar Compat. | Slide-Fix™ PAP smear fixative jars |
| Material | High-Density Polyethylene (HDPE) |
| Color | Purple |
| Color Use | Purple Slide-Fix™ caps provide an additional color dimension for |
| Fixative | ✓ Alcohol and Carbowax/PEG compatible |
| Autoclave | ✓ Compatible (121°C) |
| Pack Size | 1000 / Bag |
| Price | $106.17 / Bag ($0.1062 / cap) |
Technical Narrative
The Caplugs® Evergreen Slide-Fix™ is a purple HDPE screw cap for Slide-Fix™ PAP smear fixative jars. Purple Slide-Fix™ caps provide an additional color dimension for cytology batch routing systems where the more common colors (Orange, Fuchsia, Red, Green) are already assigned — purple is used to designate specialized cytology sub-types, overflow accession batches, or specific anatomic site designations within multi-category cytology batch routing schemes. With this addition, the Slide-Fix™ cap range now spans nine colors, providing the full color vocabulary needed for complex cytology batch routing protocols in high-volume anatomic pathology and cytology laboratories.
HDPE provides the chemical resistance required for prolonged contact with alcohol-based and Carbowax/PEG cytology fixatives, autoclave compatibility at 121°C for pre-sterilized supply, and consistent screw-thread engagement for leak-free fixative jar closure. All nine Slide-Fix™ colors share the identical HDPE material specification and thread geometry — color is the only variable.
At $106.17 per 1000/Bag — $0.1062 per cap. See the complete 9-color table above. All colors priced identically at $106.17/1000.
Technical Specifications — Caplugs® Evergreen
| Specification | Value |
|---|---|
| Part Number | |
| Caplugs Item # | 3003531U20E1 |
| Sub-brand | Slide-Fix™ (Caplugs® Evergreen) |
| Cap Style | Screw cap — PAP jar thread |
| Material | High-Density Polyethylene (HDPE) |
| Color | Purple |
| Jar Compat. | Slide-Fix™ PAP smear fixative jars |
| Fixative | ✓ Alcohol (EtOH, IPA) and Carbowax/PEG fixatives |
| Autoclave | ✓ 121°C / 15 psi |
| Sterility | Non-Sterile |
| Pack Size | 1000 / Bag |
| BPA/Phthalate | BPA-free; no phthalate plasticizers |
| Country of Origin | Made in U.S.A. (California) |
Slide-Fix™ PAP Jar Cap Workflow Compatibility — Purple
The purple HDPE cap provides cytology fixative jar closure:
| Application | Tube / Specimen | Notes |
|---|---|---|
| Slide-Fix™ PAP jar capping | Slide-Fix™ PAP smear fixative jars | HDPE threads engage Slide-Fix™ jar neck thread |
| GYN cytology fixation | Cervical, endocervical, vaginal smear fixation | HDPE resists alcohol and Carbowax fixatives |
| Color-coded cytology batching | Visual batch differentiation in cytology lab | 9 colors for complete cytology batch routing protocol |
| Specialized batch routing | Sub-type or overflow batch designation | Purple/Yellow expand routing beyond 7-color schemes |
| Non-GYN cytology | BAL, sputum, body fluid smear fixation | Color routing for non-GYN vs GYN specimen separation |
| Replacement cap program | Lost/damaged caps for Slide-Fix™ jars | Exact thread for Slide-Fix™ jar necks |
| Cytology QC compliance | CAP/CLIA accredited cytology lab closure | HDPE cap per pre-analytical cytology protocol |
Validate cap-to-jar thread fit with a sample before bulk purchase.
Chemical Resistance — High-Density Polyethylene (HDPE)
HDPE resists alcohol and Carbowax/PEG cytology fixatives. Autoclave-compatible.
| Reagent / Condition | Compatibility |
|---|---|
| Alcohol fixatives (EtOH, IPA) | ✓ Excellent — primary cytology fixative |
| Carbowax / PEG fixatives | ✓ Good — standard Slide-Fix™ formulation |
| Aqueous buffers | ✓ Excellent |
| Dilute acids (<10%) | ✓ Good |
| Autoclave (121°C) | ✓ Compatible |
| Concentrated organics | ✗ Not recommended at high concentration |
Complete Slide-Fix™ PAP Jar Cap Color Range (9 Colors)
All nine colors are identical HDPE thread specification — color selection is cytology protocol-driven:
| Part Number | Color | Price/1000 | Primary Use |
|---|---|---|---|
| 300-3531-020 | Natural | $106.17 | Default / label-based ID |
| 300-3531-B20 | Blue | $106.17 | GYN cytology batch routing |
| 300-3531-E20 | Orange | $106.17 | STAT / priority cytology |
| 300-3531-G20 | Green | $106.17 | Non-GYN / processing round |
| 300-3531-K20 | Fuchsia | $106.17 | GYN / anatomic pathology |
| 300-3531-L20 | Lavender | $106.17 | Date-coded / EDTA batch routing |
| 300-3531-R20 | Red | $106.17 | Second-read / QC review |
| Purple | $106.17 | Specialized cytology batch designation | |
| 300-3531-Y20 | Yellow | $106.17 | SPS/culture / specialized tube batches |
Laboratory Applications
Serves cytology labs using Slide-Fix™ jars for color-coded batch routing, GYN and non-GYN cytology fixation, and any cytology program requiring additional color variety beyond the primary seven-color range.
U.S. Manufacturing, Quality & Institutional Procurement
Every Caplugs® Evergreen lot is precision-molded at our California manufacturing facility and subject to rigorous dimensional inspection. We supply reference laboratories, hospital systems, and federal procurement offices under institutional pricing programs with blanket-order support and same-day shipping. Request a free sample below to validate fit before committing to volume.
Frequently Asked Questions — Caplugs® Evergreen
What cytology workflow uses purple Slide-Fix™ caps?
Purple Slide-Fix™ caps provide an additional color dimension for cytology batch routing systems where the more common colors (Orange, Fuchsia, Red, Green) are already assigned — purple is used to designate specialized cytology sub-types, overflow accession batches, or specific anatomic site designations within multi-category cytology batch routing schemes. All nine colors are identical HDPE specification — color is protocol-defined.
How many colors are available in the Slide-Fix™ PAP jar cap range?
Nine colors: Natural, Blue, Orange, Green, Fuchsia, Lavender, Red, Purple, and Yellow — all at $106.17/1000, all identical HDPE thread specification. See the complete table above for all part numbers and their primary cytology conventions.
Are all nine Slide-Fix™ cap colors the same price?
Yes. All nine colors are priced identically at $106.17/1000. Choose colors based entirely on your cytology lab's batch routing protocol requirements.
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