The Filter Refill
The Filter Refill keeps PorePlus doing its job. A fresh four-stage cartridge — calcium sulfite, KDF-55, coconut activated carbon and PP cotton — that drops straight into your existing showerhead.
Replace every 90 days. Swap takes about 30 seconds, no tools.
Subscribed to PorePlus? Your filters already ship every 90 days for $33 — no need to order here.
Free shipping · Ships in 3–5 business days
Fits every PorePlus finish — Chrome, Black, Brushed Nickel
Free shipping · No restocking fee on returns
Subscribers pay $33 — delivered every 90 days automatically
What's Inside
- Stage 1 — Calcium sulfite: targets chlorine and chloramine
- Stage 2 — KDF-55: reduces dissolved heavy metals
- Stage 3 — Coconut activated carbon: organic compounds and odor
- Stage 4 — PP cotton: sediment, rust flakes and grit
Filter Life
- Typical household: replace every 90 days
- Heavy use or very hard water: replace sooner if pressure drops or the chlorine smell returns
Compatibility
- Designed for the PorePlus Filtered Showerhead only
- Fits all three finishes
- Not compatible with other brands' showerheads
What's Included
- One PorePlus four-stage filter cartridge
- Replacement instructions
Choose options
HOW TO REPLACE
Thirty seconds, no tools.
The cartridge lifts straight out. Four stages, one part, ninety days.
- 01
Unscrew the head
Twist PorePlus off the shower arm by hand. It's hand-tight — no wrench.
- 02
Open the housing
Turn the cap a quarter-turn and lift it off.
- 03
Swap the cartridge
Old one out, new one in — arrow toward the spray face.
- 04
Close and rinse
Cap on, head back on the arm, run the water for 30 seconds. Done for 90 days.
Replace every 90 days — or sooner if pressure drops or the chlorine smell comes back.
INSIDE THE FILTER
Four stages. One cartridge.
Stage 1 — Calcium Sulfite
Targets chlorine and chloramines, and keeps working in hot water.
Stage 2 — KDF-55
Addresses dissolved heavy metals like lead, mercury, nickel and chromium.
Stage 3 — Coconut Activated Carbon
Captures residual organic compounds and odor-causing impurities.
Stage 4 — PP Cotton
Catches sediment, rust flakes and grit before water reaches your shower.
Frequently Asked Questions
Every 90 days for a typical household. If pressure drops noticeably or the chlorine smell comes back before then, it's time.
Yes — Chrome, Black and Brushed Nickel all use the same cartridge.
No. Your filter ships automatically every 90 days for $33. You can check or change your next shipment date from your account.
No. The cartridge is sized for the PorePlus housing only.
Yes, within 60 days — no restocking fee on filter returns.