Waterpik under the sink model 1R-10A filters

[brkngls]

I have been using a the Waterpik under the sink model 1R-10A filters.
I need some replacements but through your site have found that it is discontinued. I believe I need the 1R-70E Teledyne Waterpik filters. I have also read that Aquapure AP 117 is compatible.
Which is the one I should be using? 9-7/8 inches commonly called a 10 inch filter in length.
1-5/16 inches commonly called 3 inch filter in diameter.

[waterfilters]

You can use either filter in the under sink system. The IR-70E reduces more contaminants and is the same brand as your current IR-10A filter. It filters more contaminants than the IR-10A and the AP117.
http://www.waterfilters.net/Waterpik-IR-70E-Under-Sink-Water-Filter_p_97-379.html

Eventually, you'll want to replace your system since all parts and filters have been discontinued from Waterpik. If something on your system breaks, there are no replacement parts unfortunately. Here are all of our under sink systems:
http://www.waterfilters.net/Filters/undersink/undersink-systems.htm

Thank you,
WaterFilters.NET