Description
This filter set contains two MA-R3 primary filters and two EcoPur® Charge Mineral Cartridges, providing complete dual-filter filtration for MasterSpas swim spas that require two primary filters. Each MA-R3 houses one EcoPur® cartridge inside its core, combining mechanical filtration with mineral purification across both filter positions.
Compatible Models — Current Generation (2025+)
H2X Swim Spas: Therapool 13, Therapool 15
Also Compatible with These Older Models
MP Swim Series: Momentum 80 D
Important Note for Pre-2025 Spas
MasterSpas swim spas manufactured before 2025 used a 1.5-inch female port. The MA-R3 uses a 2-inch female thread. If your spa was manufactured before 2025, you may need a thread adapter for compatibility. If you know you need one, it is available for purchase separately on our site. If you are unsure, contact us before ordering and we will confirm the right fit for your specific model and year.
Replacement Schedule
Replace both MA-R3 filters every 12 months under normal use, or every 6 months with heavier use. Replace each EcoPur® Charge Cartridge every 6 months.
Due to the nature of filtration products, we cannot accept returns on opened or incorrectly ordered items. Please verify your model and production year before purchasing.
