Caplugs® Evergreen
8019–01 L PCR Plates, PP, Natural, Thermo Fisher/Corning Compatible — 290-8022-03LS | 15/Box | Caplugs® Evergreen
8019–01 L PCR Plates, PP, Natural, Thermo Fisher/Corning Compatible — 290-8022-03LS | 15/Box | Caplugs® Evergreen
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48-Well Microplate Lids, Polypropylene (PP), Natural — 290-8022-03LS | 15/Box (105/Case)
| Quick Reference — 290-8022-03LS | |
|---|---|
| Wells | 48-well SBS format |
| Material | Polypropylene (PP) |
| Color | Natural (transparent) |
| Compatibility | Fits standard 48-well SBS-footprint microplates |
| Pack Size | 15 / Box (7 boxes / case = 105 lids) |
| Autoclave | ✓ Compatible (121°C / 15 psi) |
| Sterility | Non-Sterile |
| Price | $77.67 / Box ($0.7398 / lid) |
Technical Narrative
The Caplugs® Evergreen is a 48-well Polypropylene (PP) microplate lid for standard SBS/ANSI-footprint 48-well plates — providing evaporation control, contamination protection, and stack stability during cell culture incubation, assay plate storage, sample archiving, and automated liquid handling workflows. Polypropylene (PP) lids offer broader chemical resistance versus PS — particularly for DMSO-containing compound storage plates, organic solvent-exposed assay plates, and autoclave sterilization workflows where PS lid integrity may be compromised. Natural transparent construction allows visual monitoring of plate contents and well-filling status without removing the lid.
The precision-molded lid geometry provides consistent friction engagement with standard 48-well plate flanges — tight enough to prevent accidental dislodgement during incubator stacking and robotic plate handling, while loose enough to allow the gas exchange required for mammalian cell culture CO₂ equilibration. Autoclave compatibility at 121°C enables sterile lid supply for contamination-sensitive cell culture applications. The 15/Box (105/Case) format delivers the per-lid economics suited to high-throughput plate-based screening programs.
At $77.67 per Box of 15 — $0.7398 per lid — the delivers consistent plate coverage at bulk economics. Also available: 290-8019-01L (96-well PS lid, $77.67/Box); 290-8020-03L (96-well PP lid, $77.67/Box).
Technical Specifications — Caplugs® Evergreen
| Specification | Value |
|---|---|
| Part Number | |
| Caplugs Item # | 290802203LSE1 |
| Well Format | 48-well, SBS/ANSI standard footprint |
| Material | Polypropylene (PP) |
| Color | Natural (transparent) |
| Compatibility | Standard 48-well SBS microplates |
| Autoclave | ✓ Compatible (121°C / 15 psi) |
| Sterility | Non-Sterile |
| Pack Size | 15 / Box (105 / Case) |
| Reorder Unit | Box of 15 or Case of 105 |
| Application | Cell culture, ELISA, assay incubation, sample storage |
| BPA / Phthalate | BPA-free; no phthalate plasticizers |
| Country of Origin | Made in U.S.A. (California) |
Microplate Lid Workflow Compatibility — 48-Well PP
The 48-well PP microplate lid fits standard SBS/ANSI-footprint 48-well plates. Compatible workflows:
| Application | Assay / Use | Notes |
|---|---|---|
| Cell culture incubation | Mammalian, insect, bacterial cell culture | Lid reduces evaporation and contamination during incubation |
| ELISA plate incubation | Primary/secondary antibody and substrate steps | PS lid compatible with all standard ELISA reagents |
| PCR plate storage / sealing | PCR master mix, sample-loaded plates | Lid prevents well-to-well cross-contamination during plate storage |
| Compound library storage | Drug candidate, small molecule compound plates | Reduces evaporation from DMSO-containing compounds |
| Cell-based assay incubation | Cytotoxicity, proliferation, reporter assays | Maintains humid environment during extended incubation periods |
| Sample archiving | Biobank aliquot plates, sample storage | Lid protects against freezer frost and container cross-contact |
| Automated liquid handling | Robotic plate handling in screening workflows | SBS-footprint lid compatible with standard robotic gripper arms |
Always confirm lid-to-plate fit with a sample pair before bulk purchase. Lid geometry is optimized for Caplugs® Evergreen microplates and standard-footprint SBS plates. Non-standard well configurations may not seal correctly.
Chemical Resistance — Polypropylene (PP)
Polypropylene (PP) lids offer broader chemical resistance versus PS — particularly for DMSO-containing compound storage plates, organic solvent-exposed assay plates, and autoclave sterilization workflows where PS lid integrity may be compromised.
| Reagent / Condition | Compatibility |
|---|---|
| Aqueous buffers (PBS, TBS) | ✓ Excellent |
| Cell culture media | ✓ Excellent |
| DMSO (≤10%) | ✓ Good |
| Short-chain alcohols (broad) | ✓ Excellent |
| Dilute acids / alkalies (<10%) | ✓ Excellent |
| Acetone (brief) | ✓ Good — brief contact |
| Chlorinated solvents | ✗ Not recommended |
| Autoclave (121°C) | ✓ Compatible |
Laboratory Applications
The 48-well PP lid serves mammalian and insect cell culture labs incubating multi-well plates; ELISA and immunoassay programs requiring covered plate incubation; compound library management for DMSO compound storage plates; high-throughput screening programs with automated plate handlers; biobank sample archiving on 48-well plates; and any laboratory requiring evaporation control and contamination protection for 48-well SBS-format plates.
U.S. Manufacturing, Quality & Institutional Procurement
Every Caplugs® Evergreen lot is precision-molded at our California manufacturing facility and subject to rigorous dimensional inspection and material purity verification. We supply reference laboratories, hospital systems, biotech firms, and federal procurement offices under institutional pricing programs with blanket-order support and same-day shipping on stocked inventory. Request a sample below to validate before committing to volume.
Frequently Asked Questions — Caplugs® Evergreen
Does the lid fit all standard 48-well microplates?
The is designed for standard SBS/ANSI-footprint 48-well plates. It fits Caplugs® Evergreen 290-series plates and most standard SBS 48-well plates from Thermo Fisher, Corning, Greiner, and Nunc. Non-standard footprints (deep-well, special geometry) may not engage correctly. Always validate lid-to-plate fit with a sample pair before large-volume purchase.
What is the difference between PS (290-8019-01L) and PP (290-8020-03L) lids?
Both are 48-well SBS-footprint lids in natural transparent finish. PS (290-8019-01L) provides slightly higher optical clarity for visual monitoring and is the standard for aqueous cell culture and ELISA. PP (290-8020-03L) offers broader chemical resistance — particularly for DMSO-containing compound storage plates (up to ~30% DMSO), organic solvent exposure, and autoclave cycles where PS may warp. Choose PP for compound libraries and aggressive chemical workflows; PS for standard cell culture and aqueous assays.
Are the lids BPA-free and autoclave-compatible?
Yes to both. The Polypropylene (PP) lid is molded from virgin polymer containing no BPA and no phthalate plasticizers. Polypropylene (PP) is autoclave-compatible at 121°C / 15 psi for sterilization before use in contamination-sensitive cell culture workflows.
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