4 Pack of genuine Master Spas outer filters — Master Spas H2X Therapool (2019-2022)
Fits Master Spas H2X Therapool models: Therapool 13. This is the pleated outer filter that the EcoPur Charge mineral core locks into.
Not sure which filter your Master Spas takes? Many models use a two-part system — a pleated outer filter with an EcoPur Charge mineral core — and some add a stand-alone filter in its own housing. Send us a photo of your filter or your serial number and we will confirm before you order.
Prefer to skip the EcoPur Charge core? Ask us about FROG @ease — it supplies its own minerals.
Not sure which filter brand is right for you? Compare hot tub filter brands here.
Did you know the number one reason for hot tub freeze damage is a dirty filter? Dirty filters also cause additional stress on the pump/motor and leads to premature failure.
Proper Filter Care System:
- Have 2 sets of filters
- Install clean filter
- Rinse dirty filter with high pressure nozzle
- Verify no debris left between pleats, before storing on shelf to dry
- Once a month soak filters in a filter cleaner solution
Filter Specs:
- Diameter – 5″
- Length – 9-5/8″ with threads
- Bottom: 2-1/8″ female thread
- SQFT: 35
- Top access, holds the EcoPur Charge core
What’s in the box: four genuine Master Spas outer filters.
✅ Not Sure It Fits? Verify Before Ordering
Hot tub part compatibility can vary by spa brand, model, year, serial number, control system, and part revision.
To help us identify the correct replacement part, please send clear photos of:
- Your existing part label or sticker
- Your spa serial number sticker
- The equipment area or installation location (if accessible)
EZ Hot Tub Parts can help confirm fitment before you order and help reduce costly returns.
It fits the Master Spas H2X Therapool models listed above (2019-2022). Master Spas changed filters across model years, so check your model and year — or use the fitment form above with a photo of your filter or serial number sticker.
This is Master Spas X268548, PMA-R3, XO3-PMA-R3, newest replacement for X268535.
Yes — this is the OEM Master Spas part (made for Master Spas by Pleatco), not an aftermarket copy.
Master Spas recommends replacing the pleated filters at least once a year and the EcoPur Charge mineral core every 6 months. Rinse pleated filters every 2–4 weeks and soak them monthly in filter cleaner.
A spare set means you always have a clean, dry filter ready while the other soaks, and multi-packs cost less per filter than singles.
It ships from our supplier warehouse, typically within 1–2 business days.
X268548 PMA-R3 XO3-PMA-R3 newest replacement for X268535
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