Description
This filter set is the exact replacement required for select Michael Phelps Swim Spas manufactured in 2017. The R3 cartridge, built with a male pipe thread connector, is designed to house the EcoPur® Charge Mineral Cartridge inside. The two PWW50P3 cartridges install alongside the R3 to complete the filtration system, ensuring the water clarity and purification balance your swim spa was engineered for.
Includes:
- 1 × Master Clear MA‑R3 Filter (MPT) – Primary cartridge designed to capture dirt, debris, and particles.
- 1 × EcoPur® Charge Mineral Cartridge – Fits inside the R3 for mineral purification.
- 2 × Master Clear PWW50P3 Filters – Cartridges that work with the R3 to deliver full system performance.
Important Fit Notes:
- ✅ Fits 2017 MP Swim Force and Force D
- ✅ Fits 2017 MP Swim Signature
- ❌ Not compatible with other production years or models outside this specification
🗓️ Replacement Schedule
- Filters: Replace every 12 months with regular care, or every 6 months with heavier use
- EcoPur® cartridge (inside the R3): Replace every 6 months
Please verify your swim spa’s model and production year before purchase. Due to the nature of the product, we cannot accept returns on opened or incorrectly ordered filter sets.

