15-Panel vs 16-Panel Drug Test Cup: Correctional Buyer Guide
15-panel vs 16-panel drug test cup compared: panels, cutoffs, CLIA status, case pack and cost per cup, plus where the EtG alcohol strip fits.
If you are choosing between a 15-panel vs 16-panel drug test cup, the panel count is the least useful number on the box. The two Serenity cups we stock look almost identical on a shelf, both ship 25 to a case, and sit about $9 apart per case. But they differ in which analytes they screen, at what cutoffs, and under which regulatory label, and those differences decide which one fits a given program.
This guide compares SM-CDOA-9155CLIA, the 15-panel CLIA-waived cup with fentanyl, against ASC-16P-TFE-CUP, the 16-panel TRA-ETG-FYL cup, and adds the SM-DOA-ETGSP EtG alcohol dip strip for programs that need alcohol screening without changing cups. Everything here is procurement-side: what each SKU is, what is on its label, and what it costs per unit. Which test to use, and how to act on a result, is a program and policy decision. All three are qualitative preliminary screens, and the catalog notes that non-negative results should be confirmed before disciplinary or legal action.
The short version
SM-CDOA-9155CLIA is the CLIA-waived 15-panel cup. It is the one to look at if your site operates under a CLIA waiver and you want fentanyl, nor-fentanyl and EDDP (a methadone metabolite) on the panel.
ASC-16P-TFE-CUP is the 16-panel cup with tramadol, EtG (alcohol) and fentanyl built in, labeled for forensic use only. It fits correctional, probation and court-ordered programs that want alcohol on the same cup.
SM-DOA-ETGSP is a single-analyte EtG strip, for adding alcohol to a cup that does not include it.
Spec comparison
| Spec | 15-Panel (SM-CDOA-9155CLIA) | 16-Panel (ASC-16P-TFE-CUP) |
|---|---|---|
| Brand | Serenity Cup | Serenity Multi-Drug Urine Test Cup |
| Panels | 15 | 16 |
| Regulatory label | CLIA waived, FDA approved | For Forensic Use Only |
| Fentanyl cutoff | FEN 1 ng/mL | FYL 20 ng/mL |
| Nor-fentanyl / EDDP | Yes (NFYL 5, EDDP 300) | No |
| Tramadol / EtG / TCA | No | Yes (TRA 100, ETG 300, TCA 1000) |
| Cup | 120 mL click-lock | Integrated cup, built-in strips |
| Temperature strip / adulteration checks | Not listed in catalog | Yes / Yes |
| Case pack | 25 per case | 25 per box |
| Case price | $59.75 | $68.50 |
| Cost per cup | $2.39 | $2.74 |
Both cups screen amphetamine, barbiturates, buprenorphine, benzodiazepines, cocaine, MDMA, methamphetamine, methadone, opiates, oxycodone, PCP and THC. The 15-panel adds EDDP and nor-fentanyl; the 16-panel adds tramadol, EtG and tricyclic antidepressants. Note the cutoffs also differ for some shared analytes (for example amphetamine at 500 vs 1,000 ng/mL and cocaine at 150 vs 300 ng/mL), so the two panels are not interchangeable even where the names match. If your policy specifies cutoffs, check the panel configuration on each product page against it before you order.
Cost per cup
At $59.75 a case, the 15-panel works out to $2.39 per cup. The 16-panel at $68.50 is $2.74 per cup, a difference of $0.35 per test, or about 15% more. Over a 500-test month that gap is $175.
The picture changes if alcohol is required. The EtG strip SM-DOA-ETGSP is $18.85 for a box of 25, or about $0.75 per strip. Pairing a 15-panel cup with an EtG strip comes to roughly $3.14 per person screened ($2.39 + $0.75), which is more than the $2.74 for the 16-panel cup that already includes EtG at the same 300 ng/mL cutoff. If every collection needs alcohol, the 16-panel is the lower-cost route. If alcohol is needed only for some clients, the 15-panel plus strips as needed costs less, because you only open a strip when the program calls for it.
Where the EtG strip fits
The EtG strip is a dip-format single-analyte test. Per the catalog it screens for ethyl glucuronide at 300 ng/mL, with a listed detection window of up to about 80 hours, reads at 5 minutes (not to be interpreted after 10), and comes individually foil-pouched in a box of 25. Like the 16-panel cup, it is labeled for forensic use only.
It makes sense when your main cup does not include alcohol (the 15-panel) or when you want to run alcohol screening separately from the full panel, for example on a different schedule. It does not make sense to buy it alongside the 16-panel for the same collection, since that cup already includes EtG.
Choosing by program type
CLIA-waived point-of-care sites. The 15-panel is the only one of the two listed as CLIA waived. If your regulatory setup requires a waived test, that settles it. Check with your compliance lead on what your own site's certificate requires.
Correctional, probation and court-ordered programs. The 16-panel's forensic labeling, built-in temperature strip and adulteration checks line up with security-screening workflows, and it includes alcohol. Pallet quantity is 180 boxes (4,500 cups) per the catalog, non-stackable, which matters if you buy in volume and have limited dock space.
Facilities focused on fentanyl. The 15-panel's fentanyl cutoff is 1 ng/mL (with nor-fentanyl at 5 ng/mL), versus 20 ng/mL for fentanyl on the 16-panel. If your protocol names a specific cutoff, match the cup to it rather than to the panel count.
Mixed programs. Many sites end up stocking both: the 15-panel as the everyday cup and the 16-panel or EtG strips for populations where alcohol is in scope. Because both are 25-count cases, par levels are easy to track in cases.
Ordering notes
Both cups are ambient-storage, non-hazmat products, so they ship and store with ordinary dry supplies. The 16-panel is lot and expiration tracked, which helps with first-expired-first-out rotation. Whichever you pick, track expiration dates at receipt, since drug test cups are a slow-moving item at smaller sites and a full case can outlast a short-dated lot. For other correctional supply planning, our bulk medical supply buying guide covers case-pack and par-level math that applies here too.
FAQ
What is the difference between a 15-panel and a 16-panel drug test cup? The panels cover different analytes. SM-CDOA-9155CLIA adds fentanyl, nor-fentanyl and EDDP and is CLIA waived. ASC-16P-TFE-CUP adds tramadol, EtG and TCA, with a temperature strip and adulteration checks, and is labeled for forensic use only.
Which drug test cup costs less per test? The 15-panel is $2.39 per cup ($59.75 per case of 25). The 16-panel is $2.74 per cup ($68.50 per case of 25).
Does either cup test for alcohol? The 16-panel includes EtG (alcohol) at 300 ng/mL. The 15-panel does not; the SM-DOA-ETGSP EtG strip can be added for alcohol screening.
Is the 15-panel drug test cup CLIA waived? Yes. The catalog lists SM-CDOA-9155CLIA as CLIA waived and FDA approved. The 16-panel is listed as for forensic use only.
How many cups come in a case? Both cups are 25 per case. The EtG strip is 25 per box, individually pouched.
Are these results final? No. All three products are qualitative preliminary screens, and the catalog advises confirming non-negative results before disciplinary or legal action.