Caplugs® Evergreen
30 mL Centrifuge Tubes, Freestanding, PPC, Natural — 220-3585-030 | 1000/Bag | Caplugs® Evergreen
30 mL Centrifuge Tubes, Freestanding, PPC, Natural — 220-3585-030 | 1000/Bag | Caplugs® Evergreen
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Quick Reference
| Part Number | 220-3585-030 |
|---|---|
| Product | Spork — combination spoon/spatula for 30 mL centrifuge tubes |
| Compatible Tube | 30 mL freestanding centrifuge tubes (220-3530 series) |
| Material | Polypropylene (PP) |
| Color | Natural |
| Pack Size | 1000/Bag |
| Sterility | Non-Sterile |
| Origin | Made in USA |
| Price | $43.37/Bag ($0.0434/unit) |
Technical Narrative
The Caplugs® Evergreen 220-3585-030 is a Spork for 30 mL Centrifuge Tubes in PP (Natural), packaged 1000/Bag. A spork is a combination spoon and spatula (or spoon and fork) tool molded as a single piece — the spork end allows scooping, mixing, and transferring semi-solid or viscous samples from and within 30 mL centrifuge tubes where a standard pipette cannot access the tube contents. Designed to fit the 30 mL centrifuge tube opening (220-3530 series), the spork provides access to the full tube depth for pellet resuspension, gel or cream sample retrieval, and semi-solid matrix manipulation without tube damage. Single-use PP construction eliminates cross-contamination risk associated with reusable metal spatulas.
Polypropylene (PP): chemically inert across the standard aqueous and buffer chemistry range, compatible with biological matrices, and rated for standard incubation temperatures. Single-use disposable format eliminates autoclaving, residue contamination, and metal ion leaching from stainless steel tools. BPA-free, phthalate-free, FDA-compliant,
Procurement economics: $43.37/Bag, $0.0434/unit at 1000/Bag. Compatible tubes: 220-3530-030 (PP) and 220-3530-080 (PPC) 30 mL freestanding centrifuge tubes. LabSupplies.com ships from USA inventory, typically same business day.
Technical Specifications
| Part Number | |
|---|---|
| Caplugs Item # | |
| Product | Spork (spoon/spatula combination tool) |
| Compatible With | 30 mL freestanding centrifuge tubes (220-3530 series) |
| Material | Polypropylene (PP) |
| Color | Natural |
| Format | Single-use disposable |
| Sterility | Non-Sterile |
| Pack Size | 1000/Bag (Spork for 30 mL centrifuge tubes, PP Natural, 1000/Bag) |
| Application | Pellet resuspension, semi-solid sample retrieval, viscous matrix manipulation in 30 mL tubes |
| BPA / Phthalate | BPA-Free, Phthalate-Free, Latex-Free |
| Country of Origin | USA |
| Price | $43.37/Bag ($0.0434/unit) |
Spork for 30 mL Centrifuge Tubes — Compatible Workflows
The spork is designed for use with 30 mL centrifuge tubes and is compatible with the following sample handling workflows.
| Application | Context / Tube | Notes |
|---|---|---|
| Pellet resuspension | Post-centrifuge, 30 mL tube | Spork accesses full tube depth to physically disrupt pellet |
| Semi-solid sample retrieval | Gel, cream, or paste in 30 mL tube | Broad spork end scoops viscous matrix without tube damage |
| Viscous liquid mixing | High-viscosity sample in 30 mL tube | Single-use; no cross-contamination from prior sample |
| Reagent transfer | Semi-solid to recipient tube | PP chemically inert; no metal ion contamination |
| Sediment disturbance | Environmental or geological sample tube | Flat edge scrapes tube wall to recover adhered sediment |
| Biofilm or culture scraping | Microbial culture in 30 mL tube | PP inert for microbiological matrices |
| Post-incubation mixing | Incubated gel or agar in 30 mL tube | Single-use eliminates autoclaving of reusable metal tools |
Chemical Resistance — Polypropylene (PP)
Compatibility reference for PP at typical laboratory conditions.
| Reagent / Condition | Compatibility | Notes |
|---|---|---|
| Aqueous buffers / saline | Excellent | Inert across pH 2–12. |
| Dilute acids / bases (<10%) | Excellent | Broad pH resistance. |
| Methanol / acetonitrile (<100%) | Excellent | Full organic solvent compatibility. |
| Ethanol / IPA (<100%) | Excellent | Compatible for standard lab conditions. |
| Ethyl acetate | Limited | Short-term compatible. |
| Dichloromethane / chloroform | Not Compatible | Causes cracking; do not use. |
| Powdered media / dry reagents | Excellent | PP inert for standard solid reagent matrices. |
| Biological matrices | Excellent | PP compatible with standard lab biological samples. |
Clinical & Research Laboratory Applications
Caplugs® Evergreen sporks for 30 mL centrifuge tubes serve clinical chemistry, microbiology, cell biology, environmental science, and research laboratories requiring single-use tools for semi-solid and viscous sample manipulation in 30 mL tube format. Clinical labs use sporks for pellet resuspension after density gradient centrifugation in Ficoll or Percoll — the conical tube pellet requires physical disruption beyond what pipetting can achieve. Microbiology labs use them for agar plug recovery, biofilm sampling, and viscous culture transfer. Environmental labs use them for sediment and gel matrix sample retrieval from 30 mL collection tubes. The single-use PP format eliminates the autoclaving, cleaning, and contamination validation requirements of reusable metal spatulas in GMP and ISO-accredited lab environments.
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 spork for 30 ml centrifuge tubess sterile?
No. The ships Non-Sterile. For sterility-critical applications, use aseptic technique or ask about gamma-sterilized options.
What is a 'spork' and how is it used in a laboratory setting?
A lab spork is a combination spoon/spatula molded as a single-piece disposable tool — one end functions as a scoop for transferring or scooping semi-solid samples, and the other end provides a flat spatula edge for scraping tube walls. In laboratory use, sporks provide physical access to the contents of centrifuge tubes where pipettes cannot reach viscous, gel-phase, or compacted pellet material.
Is the spork compatible with the PPC freestanding tube (220-3530-080) as well as the PP (220-3530-030)?
Yes. Both the 30 mL PP freestanding tube (220-3530-030) and the 30 mL PPC freestanding tube (220-3530-080) share the same tube opening dimensions — the spork is compatible with both.
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