






💦 Filtered freedom for every adventure—never settle for less than pure hydration!
The HydraPak 42mm Filter Cap delivers fast, reliable water filtration with a flow rate exceeding 1 liter per minute. Certified to remove 99.9999% of bacteria, parasitic cysts, and microplastics, it ensures safe drinking water on the go. Lightweight at only 57 grams and compatible with all 42mm HydraPak bottles, this filter cap is engineered for endurance athletes, hikers, and emergency preparedness alike.



| Material | PP/POM, EPDM, Silicone, Hollow Fiber |
| Product Dimensions | 1.65"D x 1.65"W x 5.1"H |
| Item Weight | 3.99 g |
| External Testing Certification | NSF |
| Product Benefits | Provides high flow rate, safe filtration removing bacteria, parasitic cysts, and microplastics, with easy usage and wide compatibility |
| Brand | HydraPak |
| UPC | 834456003236 |
| Unit Count | 1.0 Count |
| Number of Items | 1 |
| Manufacturer | Hydrapak |
| Part Number | HYF03N |
| Item Weight | 0.141 ounces |
| Item model number | F03 |
| Size | 42mm |
| Color | Blue |
| Style | Potable Water Filter |
| Installation Method | Direct Attachment |
| Item Package Quantity | 1 |
| Flow Rate | 1 Liters Per Minute |
| Special Features | NSF certified |
| Included Components | 42mm Filter Cap |
| Batteries Included? | No |
| Batteries Required? | No |
| Warranty Description | Beyond Lifetime Warranty |
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