What is included in the pack?

Three cartridges: the Carbon Block CTO (W-PN-1001, green), the Reverse Osmosis Membrane (W-PN-1002, red) and the GAC Carbon CTO sediment pre-filter (W-PN-1017, blue).

How often should I replace the filters?

Replace the pre-filter and post-filter every 6-12 months. The RO membrane typically lasts 2-3 years. Actual life depends on your local water quality and household water usage.

Is this pack certified?

Yes - the MicroMax 7000 system is WQA Gold Seal Certified, independently tested to NSF/ANSI Standard 58 for health effects and NSF/ANSI Standard 42 for aesthetic effects.

Can your technician install it for me?

Yes - add a Filter Replacement service visit and we handle the swap and system check.

Authorized Puronics Dealer

(855) 684-7663

Replacement Filters

PURONICS MicroMax 7000 Replacement Filter Pack

SKU ICW-KIT-RO Backordered(1)

Replacement Filter Pack for the Puronics MicroMax 7000 Reverse Osmosis Filter System. This MicroMax 7000 Filter Pack includes the Carbon Block Filter, Reverse Osmosis Membrane and GAC Carbon Sediment Filter (Parts W-PN-1001, W-PN-1002, W-PN-1017). Pack contains 3 cartridges.

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Replace

Pre-Filter & Post-Filter: every 6-12 months. RO Membrane: every 2-3 years. Filter life varies with local water quality and household usage.

Prefer a technician?

Book a filter replacement visit

Fits your system

This pack is a direct-fit replacement for:

Puronics MicroMax 7000 Reverse Osmosis Filter System
Qualifying multi-stage RO systems serviced by our technicians

Not sure which system you have? Call (855) 684-7663 and we'll confirm the right parts for you.

Reorder & maintenance reminder

Filters & cartridges: every 6–12 months. Sediment, carbon and alkaline stages lose capacity within a year on Central Florida water.
Membranes & media: every 2–3 years. RO membranes and tank media last longer, but should be checked at the 2-year mark.
This item's schedule: Pre-Filter & Post-Filter: every 6-12 months. RO Membrane: every 2-3 years. Filter life varies with local water quality and household usage.

Installed on

Next replacement

January 31, 2027

Features

Complete 3-cartridge replacement pack for the MicroMax 7000
Color-coded filters for easy identification and ordering
GAC Carbon Sediment pre-filter, RO membrane and Carbon Block post-filter
WQA Gold Seal Certified to NSF/ANSI 58 (health effects) and NSF/ANSI 42 (aesthetic effects)
Rigorously tested for structural integrity and contaminant reduction

Specifications

Contents: Carbon Block CTO, Reverse Osmosis Membrane, GAC Carbon CTO
Cartridges in pack: 3
Part numbers: W-PN-1001, W-PN-1002, W-PN-1017
W-PN-1001 (Green): Carbon Block CTO
W-PN-1002 (Red): Reverse Osmosis Membrane
W-PN-1017 (Blue): GAC Carbon CTO
Certifications: WQA Gold Seal - NSF/ANSI 58 & 42

Compatible systems

Puronics MicroMax 7000 Reverse Osmosis Filter System
Qualifying multi-stage RO systems serviced by our technicians

Installation recommendations

1Shut the feed valve and drain the system at the faucet.
2Replace the GAC Carbon sediment pre-filter first.
3Swap the Carbon Block post-filter next.
4Replace the RO membrane, then pressurize, leak-check and discard the first two tank fills.

Frequently asked questions

Customer reviews

"One box, everything labeled by stage. Made annual service painless."

Dana R.