Found this at Lowes for 70$ with filters that last for 1200 gallons - after multiple tests on a trickle drip I'm getting no chloramine / chlorine registering in my test kit (though a top off at this rate could take all afternoon)
I used a garden hose to 1/4" converter then have the hose barely on to get a slow trickle
Flow rate
You can let it go full blast but my kit was testing 1-3 parts chlorine (though better than 6+ off the chart when straight from the tap) still when at a slow drip the test kit comes back completely clear