Description
The WF139P covers the Walker Alpha OLD + Sterile range in the Ultramax Systems alternative line. It is a Grade P general purpose particulate element and holds bulk solid debris, pipe scale and rust, rated at 5 µm. The element belongs at the front of the train, protecting the finer stages behind it. Catching the coarse load here keeps the coalescing stages from blinding early. Dimensions follow the original, so it installs into the existing housing without modification. Housings in the A391X5 family take this element. Australian stock holding keeps lead times short, at a working budget price relative to the OEM part.
This replacement filter element from Ultramax is a high-quality, Walker Filtration Alpha Series-compatible alternative. Designed as an alternative to OEM part numbers E139X5 EWK139P OWAAE1139X5/P APW139P5 EWK139P-NAPE Walker Filtration E139X5 Walker Filter E139X5. It is engineered to suit housing models A391X5. Manufactured to strict quality standards, it delivers reliable system protection at a competitive price.
Cross Reference
- A391X5
Other Grades for This System
| Grade | Part number | Filtration | Micron |
|---|---|---|---|
| P | WF139PYou are here | General Purpose Coalescer | 5 µm |
| A | WF139A | Activated Carbon | 0.01 µm |
| P | WF139P25 | General Purpose Coalescer | 25 µm |
| X | WF139X | General Purpose Coalescer | 1 µm |
| Y | WF139Y | Oil Removal Coalescer | 0.01 µm |
| YO | WF139YO | Oil Removal Coalescer | 0.1 µm |
Features
- Grade P media rated at 5 µm
- Holds bulk solid debris, pipe scale and rust
- Dimensional match to the Walker Alpha OLD + Sterile original, fits the existing housing without modification
- Suits A391X5 housings
- Held in Australian stock, not brought in to order
Applications
- First stage protection on a new installation
- Air lines carrying pipe scale or rust
- General workshop air
- Ahead of finer filtration stages
All brand names, trademarks and part numbers shown on this page remain the property of their respective owners and appear for identification purposes only. Ultramax Systems is not affiliated with, endorsed by, or a licensee of any manufacturer listed. Cross references indicate dimensional and performance equivalence, not original equipment supply. Please confirm the fitment against your housing before you order.
WarrantyEvery element is warranted to meet the Ultramax standard specification when it reaches you. If one does not, we will replace it, supply an equivalent, repair it, or cover the cost of replacing it. Tell us within 14 days of purchase to arrange a return. A restocking fee applies, and special order items cannot be returned. Our terms and conditions set out the detail.
