The Tandem t:slim X2 is one of the most popular insulin pumps in the US — and for good reason. But life changes: insurance switches your coverage, you transition to a hybrid closed-loop with a different system, your doctor recommends a new device, or a loved one with diabetes passes away and leaves supplies behind. Whatever the reason, you're now sitting on boxes of unused Tandem supplies that still have real value.
StripValue turns those unused supplies into cash. Our mail-in buyback program is simple, fast, and free to use. We buy Tandem t:slim cartridges, infusion sets, and compatible CGM supplies from individuals across all 50 states.
What Tandem-Compatible Supplies Does StripValue Buy?
| Supply Type | Examples We Accept | Typical Payout Range |
|---|---|---|
| Tandem t:slim Cartridges | 300-unit cartridges (sealed boxes) | $15 – $35 / box |
| Infusion Sets | AutoSoft 90, AutoSoft 360, TruSteel (sealed) | $10 – $25 / box |
| Dexcom G6 Sensors | 3-pack sealed boxes | $40 – $90 / box |
| Dexcom G7 Sensors | 3-pack or 10-pack sealed boxes | $45 – $110 / box |
| Dexcom G6/G7 Transmitters | Sealed, unexpired | $30 – $70 / unit |
| Test Strip Pouches (compatible) | Various brands, sealed, 6+ months exp. | $8 – $22 / box |
| Freestyle Libre 3 Sensors | Sealed 2-pack boxes | $30 – $65 / box |
We cannot buy opened supplies, expired supplies (less than 3 months to expiration), prescription medications, used devices, or anything requiring a valid Rx that we can't verify. When in doubt, describe your items and we'll let you know.
Why People End Up With Extra Tandem Supplies
You're not alone. Here are the most common reasons our customers reach out:
- Insurance upgrade: Your plan now covers a newer system (Omnipod 5, MiniMed, etc.) and you still have Tandem supplies from your previous quarter's shipment.
- Technology change: You moved to a different closed-loop AID system and have unopened t:slim supplies leftover.
- Overshipment: Mail-order pharmacies and DMEs sometimes ship ahead — you have more than you'll ever use.
- Life change: A family member passed away or a child outgrew the need for insulin pump therapy.
- Type change: Diet, medication, or remission reduced or eliminated the need for insulin delivery.
How the StripValue Mail-In Process Works
Tell us what you have — brand, quantity, and expiration dates. We'll give you a cash offer within 24 hours.
We send you a prepaid shipping label. Box up your supplies and drop them off — no cost to you.
Once we receive and verify your supplies, we send payment by check, Zelle, or PayPal — your choice.
Is It Legal to Sell Unused Diabetic Supplies?
This is the most common question we get — and the answer is yes, with important nuances:
- Selling over-the-counter diabetic supplies (test strips, lancets, certain CGM sensors sold OTC) is legal under federal law.
- Selling prescription-only supplies (insulin pump hardware, certain Rx CGM systems) is more complex and varies by state.
- Tandem cartridges and infusion sets are typically sold through Rx, but resale of unused, sealed supplies by the original recipient is generally permissible.
- You cannot sell supplies purchased using Medicare/Medicaid — this would violate federal law.
- If your supplies were paid for by private insurance or out-of-pocket, you generally can sell them.
We ask all sellers to confirm the payment source of their supplies. When in doubt, consult an attorney or reach out and we'll help you understand your situation.
Millions of Americans can't afford diabetic supplies. When you sell your extras through StripValue, those supplies reach people who need them — often at below-retail prices. Your unused supplies become someone else's health. That's a win for everyone.
Tandem t:slim X2 Background — Why These Supplies Are Valuable
The t:slim X2 is Tandem's flagship closed-loop insulin pump, compatible with Dexcom CGM and Tandem's Control-IQ and Mobi platforms. Its supplies — particularly the proprietary 300-unit cartridges and specific luer-lock infusion sets — are unique to the Tandem ecosystem and carry real secondary market value because:
- They're expensive retail: a box of 10 infusion sets can cost $60–$100+ without insurance.
- Many people are underinsured or have high deductibles and can't afford full retail.
- The supplies are highly standardized — sealed, sterile, and verifiable.
How Much Are Your Tandem Supplies Worth?
The biggest factors affecting your payout:
- Expiration date: More runway = higher value. We prefer 6+ months remaining.
- Quantity: Larger lots pay more per unit — we pass on bulk savings.
- Sealed packaging: All boxes must be factory sealed and undamaged.
- Brand/model specificity: Tandem-compatible supplies sell fast; generic or discontinued items may be worth less.
We Buy All Major Diabetic Supply Brands
We're not Tandem-only. StripValue buys from across the diabetic supply ecosystem:
- CGM: Dexcom G6, G7, Stelo — Freestyle Libre 2, 3 — Medtronic Guardian sensors
- Test Strips: OneTouch, Accu-Chek, Contour, Freestyle, TrueMetrix, ReliOn
- Insulin Pump Supplies: Tandem, Omnipod (pods), Medtronic reservoirs/sets
- Lancets & Misc: Most major brands, sealed
Frequently Asked Questions
No. Family members managing supplies for a deceased or changed-situation relative frequently sell through us. We just ask that the supplies were originally paid for through private insurance or out-of-pocket, not Medicare/Medicaid.
Typically within 2–5 business days of us receiving your shipment. We fast-track inspection for Tandem and Dexcom supplies.
Reach out as soon as possible — sooner is always better. Supplies expiring in less than 3 months are generally not accepted, but we can advise based on your specific situation.
We require factory-sealed, unopened boxes. Partial or opened boxes cannot be accepted for quality and safety reasons.
We focus on consumable supplies rather than durable medical equipment (pumps). Contact us for specifics — we may be able to refer you to the right buyer for the device itself.
Visit stripvalue.com to get your free quote today. We make it easy — describe your supplies, get an offer, and ship free. Payment in 2–5 days.