Membrane Solutions Water Filter Straw S2 – NSF/ANSI 42/372/401 Certified 4‑Stage 0.1 μm Portable Water Purifier with Rep

Title Portable Survival Water Filter Straw — NSF & SGS Certified Ultrafiltration for Hiking, Camping, Travel

Subtitle NSF/ANSI 42, 372, 401 tested (Report NBF21-004693-01). Fast drinking water in seconds. 500 ml/min flow. ≥20,000 L lifespan.

Key benefits - NSF certified and SGS tested for reliable water safety.
- Fast, clean water in seconds — ideal for hiking, camping, travel, and emergencies.
- Detachable straw design saves money: replace the filter element, not the whole straw.
- Easy backwash via any standard bottle — no syringe, no batteries, no purification tablets.
- 4-stage filtration for clearer, better-tasting water with long service life.

Product description This portable survival water filter straw gives clean drinking water quickly and reliably. It is certified by NSF and tested by SGS (Test Report NBF21-004693-01) to meet NSF/ANSI 42, 372, 401 standards. The filter uses a 0.1-micron hollow fiber ultrafiltration membrane, coconut shell GAC, and dual PP fiber layers. It reduces particulates, odor and chlorine, and helps lower some heavy metals to improve taste.

Unique detachable design Both ends of the S2 straw disassemble. Replace only the filter element in the field. This reduces waste and saves you money compared with one-piece straw filters.

Simple backwash system The detachable mouthpiece screws onto common bottles for backwashing. No extra syringe needed. Backwashing keeps the ultrafiltration membrane performing and helps maintain flow.

Performance and capacity - 4-stage filtration: PP pre-filter, coconut shell GAC, hollow fiber ultrafiltration (0.1 μm), final PP layer.
- Maintains a fast flow rate of about 500 ml/min under normal use.
- Long lifespan: provides at least 20,000 liters of filtered water when properly maintained.

Versatile use - Use as a personal water filter straw.
- Connect to soft water pouches or standard disposable bottles.
- Add an extension silicone tube for distant water sources (tubing not included).
- Works as a replacement gravity filter for family or group use.

Safety and materials Made from food-grade, BPA-free and lead-free materials. Certified to NSF standards to reduce odor and particles while keeping materials safe for drinking water contact.

Who it’s for Backpackers, hikers, campers, travelers, and emergency preppers who need a lightweight, compact, and dependable water filtration solution. Also great as a practical gift for outdoor enthusiasts.

What’s included - Detachable S2 water filter straw (with mouthpiece)
- User guide

Specifications - Certifications: NSF & SGS (NSF/ANSI 42, 372, 401) — Test Report NBF21-004693-01
- Filtration: 0.1-micron hollow fiber ultrafiltration + coconut shell GAC + double PP fiber
- Flow rate: ~500 ml/min
- Estimate lifespan: ≥20,000 L
- Materials: Food-grade, BPA-free, lead-free

Get fast, safe water anywhere. Reliable performance for hiking, camping, travel, and emergency survival.