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QMP 301 ALKA (1/4" Threaded) Under Counter Alkaline Inline Water Filter Cartridge

QMP 301 ALKA (1/4″ Threaded) Under Counter Alkaline Inline Water Filter Cartridge

QMP 301 ALKA (1/4” Threaded) — Alkaline Inline Water Filter

Add a finishing stage to your reverse osmosis system with an alkaline inline water filter 1/4″ threaded for secure, standard connections. Designed for post-RO placement, this inline filter helps increase pH and supports negative ORP to deliver a smoother, more balanced taste at the faucet.

Highlights

  • 1/4″ threaded inline connections (secure, universal fit for many RO setups)

  • Built for post-RO installation (after the membrane)

  • Helps raise pH after RO filtration

  • Supports negative ORP as a final-stage polish

MSRP $225.00

Out of stock

Description

QMP 301 ALKA (1/4” Threaded) — Alkaline Inline Water Filter for Post-RO Systems

Reverse osmosis delivers exceptionally clean water—but some homeowners prefer a more balanced finish after filtration. The QMP 301 ALKA (1/4″ threaded) is an alkaline inline water filter designed to install after your RO membrane as a post-RO polishing stage.

This version uses 1/4″ threaded connections, making it a great choice for systems that require threaded fittings rather than push-to-connect quick couplers. Once installed inline, the filter helps increase pH and supports a negative ORP profile as water flows to your faucet.

Why add a post-RO alkaline inline filter?

  • More balanced finish: Many people find post-RO alkalinity creates a smoother drinking experience.

  • Simple upgrade: Installs as an inline stage without changing your entire RO system.

  • Secure threaded fit: Ideal when your setup is designed around 1/4″ threaded connections.

Product details

  • Model: QMP 301 ALKA (Threaded)

  • Type: Alkaline inline water filter

  • Use case: Post-RO (after membrane)

  • Connection: 1/4″ threaded

If you want an alkaline finishing stage for your RO system and your setup uses threaded fittings, this 1/4″ threaded version is the right match.

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FAQ

MirconGuard™ enhances the filtration ability of the filter. The base media was developed for NASA space vehicles. Simply put, it uses nanotechnology to remove far smaller things from water than any filter alone would be capable of while maintaining a high flow rate.