Pentair FNS Plus D.E. Filter EC-180007 chemical-feeders Automatic water bypass to enable

Automatic water bypass to enable the heater to handle different Gallons Per Minute without having to adjust the flow rate manually

and can withstand temperatures of up to 175° F

Delivers uninterrupted heating performance regardless of falling leaves

Pentair 155372

Pentair EC-188592

Pentair FNS Plus D.E. Filter EC-180007 chemical-feeders Automatic water bypass to enablePentair FNS Plus D. E. Filter EC 180007 Filtering with diatomaceous earth (D. E.) gives you water that really sparkles. That's because D. E. filters remove the tiniest of contaminants particles as small as 5 microns (an average grain of sand is 1,000 microns!). Even though these particles can't be seen individually, collectively they greatly affect water clarity. Here's why diatomaceous earth filters work so well. Water passes through a series of D.