Several great units on the market.
I am regurgitating what I wrote from a similar thread a couple of weeks ago:
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You'll get 100 different answers on which to buy and much of it depends on where one likes to purchase from such as BRS, Marine Depot, the list goes on and on and prices differ.
The following is a ~guideline for changing components are pretty much the same but there are variables and different companies will give different time frames. The following is
only an average on what many of us do.
1. Sediment is approximately every 6 months
2. Carbon Blocks is approximately once a year
3. The membrane is once every 2 years
4. Depending on the DI
color changing mixed bed deionization cartridge (DI) should be replaced when the resin changes color completely to amber, or if the TDS value reaches the same TDS level of the water coming from the membrane prior to entering the DI cartridge. Luckily, finding out exactly when you need to change your filter cartridges is easy. TDS will be noticed, sediment filter darkens and so on.
Not trying to sway you on a brand I would like to post a couple of thing on the following unit I have had for about 8 years now and with regular changes, it is as good as new. I'm attaching 2 years worth of orders to show the average cost of my particular unit. Units will vary and I show one with membrane and the next without to give you a rough idea of costs to be expected.
I hope it helps give you an idea.
https://filterdirect.com/rd106p-aqu....html?osCsid=0acec8e93295a55f965613f39cc5e78d
