So Pure 1 Micron PPF Sediment Filter for RO Water Filters
The So Pure 1 micron PPF sediment filter is a 10 inch polypropylene cartridge for the 1st stage of a domestic RO water filter. It is the first cartridge water meets when it enters the plant. It stops rust, sand, silt and suspended dirt so that the carbon filters and the RO membrane after it stay clean and work properly.
So Pure is a China-made brand that Axtron Pakistan supplies alongside the Axtron, Classic Pure and Hi-Tech ranges. This is the 1 micron, 130 gram cartridge, the middle grade of the So Pure PPF range. It is a standard 10 inch size, so it fits almost every domestic RO plant in Pakistan, whatever the brand.
The So Pure PPF Range – Choose the Right Grade
So Pure PPFs come in three weights. All three are 10 inch, made in China, and fit the same housing.
| So Pure PPF | Weight | Micron | Best Suited For |
|---|---|---|---|
| So Pure 0.3 micron PPF | 160 g | 0.3 micron | Finest filtration and maximum membrane protection |
| So Pure 1 micron PPF (this product) | 130 g | 1 micron | Balanced choice for most homes: fine filtration with steady flow |
| So Pure 5 micron PPF | 100 g | 5 micron | Coarser filtration; useful where water carries a lot of sand and mud |
A heavier PPF has more polypropylene fibre packed into the same 10 inch size, which gives finer filtration. The 1 micron grade sits in the middle, which is why it suits most domestic RO plants.
What 1 Micron Means
A micron is one-thousandth of a millimetre. A 1 micron PPF catches much finer particles than a 5 micron PPF, giving the carbon stages and the membrane better protection. A finer filter fills up faster in very muddy water, so check it regularly.
What Is Printed on the So Pure PPF Label
These details come directly from the product label:
- Product: PPF sediment filter, 1 micron
- Removes rust, sand, silt, sediment and other suspended impurities
- 100% polypropylene
- Excellent micro-organism resistance
- True graded density: higher dirt-holding capacity and longer life
- Higher flow rates with low pressure drop
- Economical
- Environmentally safe
- For standard filter housings
- Markings printed on the label: NSF and Water Quality Association logos
What “True Graded Density” Means
The polypropylene fibre is packed loosely on the outside and tighter towards the centre. Bigger particles are caught in the outer layers and finer dirt in the inner layers. The whole depth of the cartridge is used, not just its surface.
Where the So Pure PPF Sits in Your RO Plant
- PPF sediment filter (this product): removes rust, sand, silt and suspended dirt.
- GAC filter: removes most of the chlorine and smell.
- CTO carbon block: a second carbon stage before the membrane.
- RO membrane: the main purification stage.
- Post-membrane stages: post carbon, mineral, nano silver, alkaline or others. These can be changed or rearranged to suit your water quality and needs.
A PPF catches particles only. It does not remove chlorine, smell or dissolved salts. That work is done by the carbon stages and the membrane.
So Pure 1 Micron PPF Specifications
| Feature | Detail |
|---|---|
| Brand | So Pure |
| Product type | PPF sediment filter |
| Micron rating | 1 micron |
| Weight | 130 grams |
| Other So Pure weights | 160 g (0.3 micron), 100 g (5 micron) |
| Material (label) | 100% polypropylene |
| Stage | 1st stage (before GAC, CTO and the RO membrane) |
| Size | 10 inch standard |
| Compatibility | All standard 10 inch housings in domestic RO plants |
| Removes (label) | Rust, sand, silt, sediment, suspended impurities |
| Made in | China |
| Replacement | Every 15–30 days, or when fully brown or dark |
So Pure PPF vs Other 1 Micron and 130 Gram PPFs at Axtron
| PPF | Made in | Weight | Micron |
|---|---|---|---|
| So Pure PPF (this product) | China | 130 g | 1 micron |
| Axtron Gold 1 micron PPF | — | 130 g | 1 micron |
| Classic Pure PPF | Taiwan | 130 g | 1 micron |
| Hi-Tech Vietnam PPF | Vietnam | 130 g | Not printed on the label |
| Axtron Vietnam PPF | Vietnam | 180 g | 0.3 micron |
All of these are 10 inch and fit the same housing. For the heaviest PPF we stock, see the 180 gram Axtron Vietnam PPF. For very muddy water, the Axtron Gold PPY sediment filter is another option.
When to Replace the So Pure PPF
From our field experience servicing RO plants:
- Change the PPF every 15–30 days, or as soon as it turns fully brown or dark. In muddy water areas this can be sooner.
- A late PPF change costs more. Dirt passes into the GAC and CTO and clogs them early, water flow drops, and the RO membrane life is shortened.
- Change the GAC and CTO every 3 months at most. Old carbon can make the water smell.
- RO plant left unused for some time? Replace all cartridges before using it again. Stale water inside the housings causes smell, and dried cartridges don’t perform properly.
Fresh pre-filters on time help the RO membrane last its normal life of about 1 year. Late pre-filter changes, high TDS and long running hours shorten it.
How to Replace the PPF
- Close the water inlet and switch off the RO plant.
- Open the faucet to release pressure.
- Unscrew the 1st stage housing with a housing spanner.
- Remove the old cartridge and wash the inside of the housing.
- Check that the O-ring is seated properly, then fit the new So Pure PPF.
- Tighten the housing, open the water, and check for leaks.
Who Should Use the So Pure 1 Micron PPF
- Homes with a domestic RO plant that uses standard 10 inch housings
- Homes on bore water or supply water that carries rust, sand or silt
- Homes with old iron pipelines that release rust
- Anyone doing the regular monthly PPF change who wants a balance between fine filtration and steady flow
A sediment filter does not reduce hardness. In areas with very hard bore water, such as many parts of Multan and South Punjab, ask us about adding a cation resin softening cartridge to protect the membrane.
For a full 3-month change in one order, see the Axtron RO filter set for 3 months or the Classic Pure RO filter set. All cartridges are listed under domestic filters.
Buy the So Pure PPF Sediment Filter in Multan, Lahore, Bahawalpur and Across Pakistan
You can buy the So Pure PPF at any Axtron branch or order online with cash on delivery anywhere in Pakistan.
Multan (Head Office)
5FP4+CXF, Akbar Road, Tipu Sultan Colony, Multan 60000
Phone: 0302-1635555 · 0300-4773040 · 061-4544442
Lahore
91-A Feroz Pur Road, Lahore
Phone: 0304-8205829 · 042-37502222
Bahawalpur
Opposite Sadiq Public School, Ahmad Pur East Road, Bahawalpur
Phone: 0302-7401250 · 062-2201005
Contact
Timings: Saturday to Thursday, 10:00 AM – 7:00 PM (Friday closed)
Email: info@axtronpakistan.com
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Installation and service
- Multan, Lahore and Bahawalpur: Axtron’s own technicians can change your filters (service charges are paid to Axtron).
- Other cities: we connect you on WhatsApp with an independent local technician. The technician quotes and collects payment directly. They are not Axtron staff, and Axtron is not responsible for their work.
Looking for a complete system? See our water filter in Multan and RO plant in Lahore pages.
Frequently Asked Questions
What does the So Pure 1 micron PPF sediment filter remove?
As printed on the label, it removes rust, sand, silt, sediment and other suspended impurities. It does not remove chlorine, smell or dissolved salts.
What are the So Pure 1 micron PPF specifications?
It is a 1 micron, 130 gram, 10 inch PPF made of 100% polypropylene, made in China.
Does So Pure PPF come in other grades?
Yes. So Pure PPFs come in 160 grams (0.3 micron), 130 grams (1 micron, this product) and 100 grams (5 micron). All three are 10 inch and fit the same housing.
Which So Pure PPF should I choose: 0.3, 1 or 5 micron?
Choose 0.3 micron for the finest filtration and maximum membrane protection. Choose 1 micron as a balanced option for most homes. Choose 5 micron where the water carries a lot of sand and mud.
How often should I change the So Pure PPF?
Every 15–30 days, or as soon as it turns fully brown or dark.
Will it fit my RO plant?
Yes, if your RO plant uses standard 10 inch housings, as almost all domestic RO plants in Pakistan do.
Where can I buy the PPF sediment filter in Multan?
At our head office on Akbar Road, Tipu Sultan Colony, Multan. Call 0302-1635555 or 061-4544442. Our Multan technicians can also fit it at your home.
Do you deliver to Lahore, Karachi and other cities?
Yes. We deliver across Pakistan with cash on delivery. In Lahore you can also visit our Feroz Pur Road branch.


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