Platypus GravityWorks Water Filter System 4.0L

Fast, pump-free filtration for groups

The Platypus GravityWorks 4.0L is a gravity-fed water filter system built for backpacking groups and basecamps. Fill the dirty reservoir, hang it up, and let gravity deliver clean water with minimal effort.

High flow rate, low hassle

With a flow rate up to 1.75 L/min, it keeps water moving for drinking, cooking, and cleanup. The microfilter is field-cleanable via quick backflushing to help maintain performance.

Proven microfiltration performance

Each microfilter is individually tested to meet EPA & NSF guidelines for removing 99.9999% of bacteria and 99.9% of protozoa (including Giardia and Cryptosporidium). Not designed for viruses or chemical/toxin removal.

Compact kit, ready out of the box

Lightweight and compact, yet group-ready thanks to the combined clean + dirty capacity. Everything you need is included.

Features

• No pumping required: fill, hang, filter
• Flow rate up to 1.75 L/min
• Microfilter life up to 1,500 L
• Removes 99.9999% bacteria and 99.9% protozoa (EPA & NSF guidelines)
• Field-cleanable: backflush in about 4 seconds
• Light and compact for travel and camp

Specifications (4.0L)

• Capacity: 4.0 L clean + 4.0 L dirty (8 L total system capacity)
• Weight: 326 g (11.5 oz)
• Dimensions: 24 x 8 cm (9.5 x 3.25 in)
• Filter media: Hollow Fiber
• Pore size: 0.2 microns
• Flow: 1.75 L/min
• Cartridge life: 1,500 L
• Effective against: bacteria, protozoa, particulates
• Not effective against: viruses, chemicals/toxins
• Material: polyethylene
• Country of origin: Made in USA of US and imported materials
• SKU: 14240
• Includes: 4.0L clean reservoir, 4.0L dirty reservoir, microfilter, hoses, shutoff clamp, storage sack