16 Panel Drug Test Cup with Kratom, EtG & Fentanyl
$5.99 Original price was: $5.99.$3.39Current price is: $3.39.
The Serenity 16 panel drug test cup combines urine collection and expanded preliminary screening in one integrated device. This Forensic Use Only configuration adds dedicated kratom, EtG and fentanyl screening while retaining a broad 16-panel drug testing profile.
- Serenity Cup® design – integrated urine collection and multi-panel screening
- Dedicated KRA/500 panel – adds kratom-related screening to the 16-panel configuration
- Expanded specialty screening – includes EtG/300 and FEN/20 panels
- OPI/300 configuration – verify cutoff levels when comparing 16-panel products
- Integrated temperature strip – provides a specimen-temperature reference after collection
- Rapid visual screening – results are read directly from the cup according to the package insert
- Forensic Use Only – use according to product labeling and intended-use instructions
- Bulk pricing available – lower per-unit pricing for larger orders
FREE SHIPPING 100 cups or more, same day shipping
| Serenity 16 Panel Drug Test Cup with Kratom, EtG & Fentanyl |
| KRA/500, FEN/20, ETG/300, AMP/1000, BAR/300, BUP/10, BZO/300, COC/300, MDMA/500, MET/1000, MTD/300, OPI/300, OXY/100, PCP/25, TCA/1000, THC/50 |
Printable result form for this cup
Record panel results, specimen checks and signatures. Free fillable PDF.
Download Result Form (PDF) See all result forms →16 Panel Drug Test Cup with Kratom, EtG and Fentanyl
The 16 panel drug test from Serenity is an all-in-one urine screening cup built for broad drug screening in one device. This configuration includes specialty panels for kratom (KRA/500), EtG alcohol metabolite (EtG/300) and fentanyl (FYL/20).
It also screens for amphetamines, barbiturates, buprenorphine, benzodiazepines, cocaine, MDMA, methamphetamine, methadone, opiates, oxycodone, PCP, TCA and THC.
The integrated cup design keeps specimen collection and screening in one device. A built-in temperature strip provides an additional specimen check. Results can normally be read in about five minutes when the device is used according to the supplied instructions.
This specific configuration is labeled Forensic Use Only. Always review the product label, package insert and intended-use designation before use.
16 Panel Drug Test at a Glance
- 16 drug and metabolite panels in one urine test cup
- Kratom screening:Â KRA/500
- Fentanyl screening:Â FYL/20
- EtG alcohol metabolite screening:Â EtG/300
- THC screening:Â THC/50
- Buprenorphine screening:Â BUP/10
- Built-in temperature strip
- Easy-to-read control and test lines
- Results in about 5 minutes
- Integrated collection and testing cup
- Bulk quantity pricing available
- Free shipping on orders of 100 cups or more
- Forensic Use Only
Need a different panel combination? Compare all 16 panel drug test cups before ordering. Different 16-panel products may contain different drugs, metabolites and cutoff levels.
What Does This 16 Panel Drug Test Test For?
This 16 panel urine drug test screens for the following drugs or drug classes at the listed cutoff concentrations.
| Drug or Drug Class | Abbreviation | Cutoff |
|---|---|---|
| Amphetamines | AMP | 1000 ng/mL |
| Barbiturates | BAR | 300 ng/mL |
| Buprenorphine | BUP | 10 ng/mL |
| Benzodiazepines | BZO | 300 ng/mL |
| Cocaine | COC | 300 ng/mL |
| Ethyl Glucuronide | EtG | 300 ng/mL |
| Fentanyl | FYL | 20 ng/mL |
| Kratom | KRA | 500 ng/mL |
| MDMA / Ecstasy | MDMA | 500 ng/mL |
| Methamphetamine | MET | 1000 ng/mL |
| Methadone | MTD | 300 ng/mL |
| Opiates / Morphine | OPI | 300 ng/mL |
| Oxycodone | OXY | 100 ng/mL |
| Phencyclidine | PCP | 25 ng/mL |
| Tricyclic Antidepressants | TCA | 1000 ng/mL |
| Marijuana Metabolite | THC | 50 ng/mL |
Cutoff levels are threshold concentrations used by the screening device. A result below a cutoff does not prove that a specimen contains no drug or metabolite. Learn more in our guide to drug test cutoff levels.
16 Panel Drug Test with Kratom
This configuration includes a KRA/500 kratom panel. This makes it different from many standard multi-panel cups that do not include a kratom-related assay.
The exact target and cross-reactivity of a KRA panel depend on the specific assay used in the device. Do not assume that every KRA/500 panel directly detects 7-hydroxymitragynine simply because the cutoff is 500 ng/mL.
For more information about the difference between kratom, mitragynine and 7-hydroxymitragynine, read our guide to kratom and 7-OH drug testing.
16 Panel Drug Test with Fentanyl
Fentanyl is not included in every standard urine drug screen. This 16 panel drug test with fentanyl includes a dedicated FYL panel with a listed cutoff of 20 ng/mL.
Because fentanyl requires its own screening assay, buyers should always review the complete panel list instead of relying only on the number of panels in the product name.
16 Panel Drug Test with EtG
The cup also includes an EtG/300 panel. EtG, or ethyl glucuronide, is a metabolite associated with alcohol exposure.
This panel is separate from the drug panels in the cup and uses its own listed cutoff of 300 ng/mL.
Detection time can vary. It depends on the substance, amount used, frequency of use, specimen, metabolism and the cutoff of the test. A cutoff should not be treated as a guaranteed detection window.
Why Compare the Exact 16 Panel Configuration?
Two products can both be called a 16 panel drug test cup and still screen for different substances.
Before ordering, compare:
- The complete drug and metabolite list
- Cutoff concentrations
- Fentanyl sensitivity
- Whether EtG is included
- Whether kratom is included
- Regulatory and intended-use labeling
- Cup size and collection format
- Specimen validity or temperature features
You can compare this product with other 16 panel drug test cups or browse the complete Serenity Cup product line.
How to Use the 16 Panel Drug Test Cup
Always follow the instructions supplied with the exact device. Product inserts and labeling take priority over general website instructions.
1. Prepare the Test
Keep the test sealed until you are ready to collect the urine specimen. Make sure the device and specimen are within the temperature range listed in the product instructions.
2. Collect the Urine Sample
Remove the lid and collect the urine directly in the test cup. Collect enough specimen for the test strips to activate correctly.
3. Secure the Lid
Close the lid firmly after collection. Keep the cup upright on a flat surface.
4. Check the Temperature Strip
Review the built-in temperature indicator within the time specified by the product instructions. The temperature strip is a specimen check and is not one of the 16 drug panels.
5. Wait for the Test to Develop
Allow the test strips to develop. Results are generally read at about five minutes. Follow the exact read-time instructions supplied with the device.
6. Read Each Panel
Read the control and test lines for each drug panel. Do not interpret a panel if the control line does not appear.
See our complete drug testing instructions for additional guidance.

How to Read the Results
Negative Result
A control line and test line are visible for the panel. A faint test line should be interpreted according to the instructions supplied with the device.
Preliminary Positive Result
The control line appears, but the test line for that panel does not appear. Rapid urine drug screens provide preliminary or presumptive results. Follow your testing program and applicable requirements for confirmatory testing when needed.
Invalid Result
The control line does not appear. Do not interpret the affected panel. Repeat the test with a new device and follow the supplied instructions.
For general information about rapid urine drug screening and confirmatory testing, see the FDA information on drugs-of-abuse testing.
Forensic Use Only
This configuration is labeled Forensic Use Only. The purchaser and end user should review the exact product label, package insert and intended-use designation before purchase or use.
Do not assume that this product has the same regulatory status as another Serenity Cup or another 16-panel test simply because the products look similar or screen for similar drugs.
Review our Forensic Use Only product policy and intended-use information.
If your testing program requires a different regulatory classification, review the CLIA-waived 16 panel Serenity Cup and confirm that its drug configuration matches your requirements.
Bulk 16 Panel Drug Test Cups
DrugTestingCup.com offers quantity pricing for buyers ordering 16 panel drug test cups in bulk. This can help forensic programs, distributors and other eligible organizations reduce the per-test cost when purchasing larger quantities.
- Quantity discounts are available
- Free shipping is available on 100 or more cups
- Eligible orders placed before 3 PM EST can ship the same business day
- High-volume buyers can request additional pricing
Always check the exact configuration before placing a bulk order. A different 16-panel cup may replace KRA, EtG or FYL with another analyte.
Frequently Asked Questions
What does this 16 panel drug test screen for?
This 16 panel drug test screens for AMP, BAR, BUP, BZO, COC, EtG, FYL, KRA, MDMA, MET, MTD, OPI, OXY, PCP, TCA and THC. Each panel has its own listed cutoff concentration.
Does this 16 panel drug test include fentanyl?
Yes. This configuration includes a dedicated fentanyl panel listed as FYL/20, with a cutoff of 20 ng/mL.
Does this 16 panel drug test include kratom?
Yes. It includes a KRA/500 kratom-related screening panel. The exact compounds detected and cross-reactivity should be confirmed with the insert supplied for this specific device.
Does the test include alcohol screening?
The cup includes an EtG/300 panel. EtG is an alcohol metabolite used for alcohol-related urine screening.
How long does the 16 panel drug test take?
Results are generally available in about five minutes. Always use the read time stated in the instructions supplied with the exact product.
Is this 16 panel drug test CLIA waived?
No. This specific configuration is listed as Forensic Use Only. If you need a CLIA-waived option, compare the regulatory status and panel configuration of the CLIA-waived 16 panel Serenity Cup before ordering.
Are positive results final?
No. Rapid urine drug screens provide preliminary or presumptive screening results. Follow the device instructions and your applicable testing program for confirmation of preliminary positive results.
Are all 16 panel drug test cups the same?
No. Different 16-panel cups can contain different drugs, metabolites and cutoff concentrations. Always compare the complete panel list and product labeling before buying.
| Weight | 0.14 lbs |
|---|---|
| Dimensions | 5 × 3 × 3 in |
| Drug tested | AMP, BAR, BUP, BZO, COC, EtG, FEN, KRA, MDMA, MET, Methadone (MTD), OPI/MOR, OXY, PCP, TCA, THC |
| Package size | Pack (100) |
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All orders will only be shipped same-day if they are placed before 3.00pm EST time. Also next day shipments will not be delivered on weekends and that the time taken on air shipments should be counted with business days.



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