MPDI MAX-KIT — Membrane + DI Upgrade Kit
SKU 20-0075Or 4 interest-free payments — see options at checkout.
- Founded 1985
- Built in Tempe AZ
- In-house membranes
- Lifetime support
Bigger refresh for the MPDI: a SpectraSelect Plus 99% rejection membrane plus a high-capacity SilicaBuster polish stage. Use this when the membrane is at end-of-life or rejection has fallen off — clears both the membrane and DI in one box.
What's included
- 1 × SpectraSelect Plus 99% Rejection RO Membrane (90 GPD)
- 1 × SilicaBuster High-Capacity DI Cartridge 10"
Specs
- Membrane: 90 GPD nominal, 99% rejection
- DI cartridge: 10", high-capacity
- Compatible with: MPDI system
Related products
- Individual: SpectraSelect Plus 99% Membrane 90 GPD · SilicaBuster HC DI 10"
- Cartridge-only refresh: MPDI HC Kit
- Browse all replacement kits
Questions about filters, production rates, or membranes? Visit our Know Your Filters page or contact us.
About DI resin (read before use)
Mixed-bed and roughing DI resins drive water to zero TDS but the resin itself is not food-grade and DI water is not intended for drinking without remineralization. Some users report a slight resin smell on first use — flush 1–2 gallons before relying on the output. Keep the cartridges sealed and dry until install. DI life drops sharply on feed water with low pH or high dissolved CO₂; aerate or degas if you see early exhaustion.