Replacement Filters & Supplies

A purification system is only as good as its filters. Here’s exactly what to replace, how often, and where to get the genuine parts — so your water stays clean year-round.

🔻
Every 3–6 months
Pre-Filter Combo
🧂
Every 3–4 months
Water Softener Salt
💧
Every 12 months
Reverse Osmosis Filter Set
🛡️
Annual service
MicroMax 8500 Filters
Pre-Filter Combo

Pre-Filter Combo

Every 3–6 months

PUREPLUS 10" × 4.5" · Sediment + KDF

Your system’s first line of defense — traps sediment, sand and rust while KDF media knocks down chlorine before water reaches the main unit.

When to replace: Change sooner if water flow drops or the water looks cloudy.

Order: 1 filter set Buy Now ↗ via Amazon
Water Softener Salt

Water Softener Salt

Every 3–4 months

Morton Clean & Protect · 40 lb bag

Regenerates the softener resin so it keeps stripping hardness, scale and iron out of every tap in the house.

When to replace: Top up with 2 bags whenever the brine tank runs low — never let it run empty.

Order: 2 bags Buy Now ↗ via Walmart
Reverse Osmosis Filter Set

Reverse Osmosis Filter Set

Every 12 months

Alkaline RO Replacement Kit

Polishes your drinking water — removes dissolved solids and re-mineralizes it for a crisp, clean, alkaline taste.

When to replace: Replace earlier if your drinking-water pressure or flow starts getting weak.

How to replace your RO filters — step by step

Quick step-by-step walkthrough — takes about 15 minutes at home.

Order: 1 filter kit Buy Now ↗ via Amazon
MicroMax 8500 Filters

MicroMax 8500 Filters

Annual service

Genuine Puronics · MM85P

Official replacement media for the MicroMax 8500 system — keeps its certified contaminant removal performing exactly on spec.

When to replace: Best swapped during your yearly system service visit.

Order: Per service kit Buy Now ↗ via Puronics

Not sure what your system needs?

Tell us your model and we’ll confirm the exact replacements — and set you up on a reminder schedule so you never run late.

Ask an Expert → Browse Systems