Don't Miss Your Stone!
The Collapsible Kidney Stone Strainer — Designed by a Sufferer
4.6 · 121 reviews on AmazonKidney stone pain rivals childbirth — and 3 in 4 sufferers will pass another.¹ The surest way to prevent the next is to analyze the stone you catch² — yet only 3.6% of patients complete the full workup.³ It starts with catching your stone.
Discreet. Collapsible. Always in your pocket when it matters.
Fits in Purse or Pocket
FDA-Listed Class I Device
Dishwasher Safe
FDA-listed Class I device, made in an FDA-registered facility. FDA registration/listing does not denote FDA approval or endorsement.
Sources & References
- Ziemba JB, Matlaga BR. American Journal of Kidney Diseases, 2023. View Study
- Pearle MS, Goldfarb DS, Assimos DG, et al. Journal of Urology, 2014. View Study
- Hunt ER, et al. Urology, 2025. View Study
What kidney stone patients are saying
Rated 4.6★ from 121 reviews on Amazon
PocketStrainer™ Collapsible Kidney Stone Strainer (Reusable, Fine Mesh, Discreet)
Catch your stone — discreetly, anywhere.
Catching a kidney stone shouldn't mean carrying the bulky, undignified cup the hospital hands you. PocketStrainer folds flat to 3/8 inch — discreet in a pocket, purse, or drawer — so you're ready to catch your stone and get it analyzed, wherever you are. Designed by an engineer who's passed stones themselves.
- Folds to 3/8 inch — discreet enough to carry to work without a second glance
- 316 medical-grade stainless (not the 304 in most strainers) — won't pit or corrode
- 40-mesh / 400-micron filter — captures the fragments your doctor needs for analysis
- Reusable & dishwasher safe — replaces wasteful disposable hospital strainers
- Made in an FDA-registered facility — Class I device, Patents Pending
Backed by a 30-day money-back guarantee.
Manufactured in an FDA-Registered Facility
Patent Pending
Reusable, Tested Materials
Common Questions
What is PocketStrainer used for?
PocketStrainer is a reusable urine strainer designed to help collect kidney stones and fragments at home.
Is it reusable?
Yes.
Is it dishwasher safe?
Yes. It can be cleaned by hand or placed in the dishwasher.
How fine is the mesh?
It uses a fine (40-Mesh) stainless steel mesh designed to help capture small stone fragments.
Is it discreet and portable?
Yes. It folds flat for easy storage in a drawer, bag, or travel kit.
Can I travel with it?
Yes. Its compact design makes it easy to carry wherever you go.
Why Choose PocketStrainer
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Discreet & Portable
Fits in a pocket or purse — ready whenever you need it.
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Captures Small Fragments
Fine mesh helps collect even small kidney stone pieces for monitoring.
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Reusable & Durable
Made from silicone and stainless steel for reliable, repeated use.
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Easy to Clean
Rinse or place in the dishwasher for quick, hygienic cleaning.
How it compares
Why PocketStrainer Is Better
Technical Details
Specifications
Material
Soft silicone + stainless steel mesh
Mesh Size
40-mesh stainless steel
Product Dimensions
4 x 4 x 0.35 inches
Weight
1.5 ounces
Reusable:
Yes
Everyday Use
Built to Go
Wherever You Go
Folds flat in seconds to fit easily in a pocket, bag, or travel kit — so it's always within reach when you need it.
Fits Easily In:
- Jeans Pocket
- Bag or Purse
- Medical Kit
See How It Works
Watch how PocketStrainer expands and folds flat for easy storage.
