Purchased in 2017, used on 2 trips. Flow rate is still impressive, though not as fast as right out of the box (if you want to get nerdy about it, I can pull out a stopwatch and give you the exact liters per minute).

If you’re still getting a massive bicep workout from pumping your water, definitely check this out. You fill up your dirty bag, hang it, and let gravity do all the work! Read all about it here: https://www.rei.com/product/866422/platypus-gravityworks-water-filter-system-4-liter

Comes with all the things, cleaned and stored per manufacturer’s recommendations.

$55 shipped PayPal FF or add 3%

pics here