Fill it and forget it system
- Familiarity: I've used it several times
This is a well constructed system that filters 4 liters in minutes. The cleanside hose has a screw top connection that is compatable with the plusBottle, 2L Platy bottle and the Hoser bladders in addition to many more Platypus products.
I have tweaked my setup by swapping out the filter opting to use the Sawyer PointONE filter instead. The weight is 1.8 oz for this filter compared to the Platypus which is 1.9 oz. The Sawyer filter is guaranteed for 1 million gallons compared to the Platypus 1500 liter filter life. This setup does require use of the Platypus or Sawyer quick disconnect fitting to connect the hoses to the filter. With some shortened hoses the total weight on my scale is 9.74 oz.
The bladders will do their job as expected if you treat them right and maintain them like any other piece of gear you depend on in your gear arsenal. This is without a doubt money well spent and I would buy it again when it comes up missing or needs to be replaced.