Micron Disposable Filter (PF-170, PA-1450DIS) (13-5/16" L)
SKU: MF-170
13-5/16" Length Disposable Filter (PF-170/PA-1450DIS)
The same amazing filters we've sold the past 10 years, now branded by ProAqua.
The Original Size - Replaces 4-15/16" diameter, 13-5/16" length, 2-1/8" core.
ProAqua MF-170 (PA-1450DIS) Replaces:
- PuraSpa/Micropure PF-170, MF-170
- Unicel C-4326, C-4950, C-4625, C-4637
- Pleatco PRB25IN3, PRB50IN, PRB25IN
- Filbur FC-2392 (17-175-4000), FC-2375, FC-2890, FC-2370
- Darlly PP1271, a.k.a. C4950 DIS
- Arctic Spas 'drop in' filter, pre 2009 (13-5/16" long, open on both ends)
- Arctic Spas Silver Sentinel Threaded (for *Arctic Spas® 2009 - current), use with Re-Usable Threaded Adapter
ProAqua 1 Micron Filters have huge advantages!
- Use less chemicals
- Enjoy cleaner water
- No filter cleaning
Directions 1 Micron Disposable Filters:
- Place filter in spa and don't check filter for at least 2 months.
- The filter will start to discolor from the outside in. When you can not see any white in the center of the filter, it is time to replace.
- Expansion of the filter material is normal. As the filter absorbs and removes debris, the filter expands and filtration improves.
- Do not use defoamers, clarifiers, cleaners, stain and scale or scum remover chemicals. These chemicals are not necessary with 1 Micron filters. These chemicals also reduce the life of our filters, because our filters remove these oils. If you have been using these chemicals in your water, drain your water before switching to 1 Micron filters.
- Do not clean or rinse filter - simply replace when it is full. Micron filters have been tested to last up to 5 months for low bather loads, but it is recommended to replace after 3 months for optimal filtration.
![]() | We recommend using a Pre-Filter, to filter your tap water as your fill your tub. Water with low TDS is easier to balance. Use less chemicals and your disposable filters will last longer. |


