3-in-1: Alkaline (raise pH level), ORP and Tourmaline inline filter, 2"x10", 1/4″ and 3/8″ Quick Connect (SKU# 3IN1-MAF)

Description Alkaline ORP Tourmaline Calcite Inline Filter Upgrade your Reverse Osmosis system with this powerful 4-in-1 post-filter, combining Alkaline, ORP, Tourmaline, and Calcite media. Designed as the final stage, this filter restores natural minerals, boosts water quality, and promotes overall wellness. ✅ Health Benefits Alkaline & ORP Media: Raises water pH to 8.5–9.5 (alkaline range) Reduces Oxidation Reduction Potential (ORP) to -50mV ~ -150mV Helps neutralize free radicals and supports cellular health Improves immune function and enhances metabolism Tourmaline Media: Emits Far Infrared Rays (FIR) and negative ions Supports detoxification, circulation, and stress relief Enhances oxygen absorption and improves mental clarity Releases over 15 trace minerals into the water Calcite Media: Naturally raises low pH water to a neutral or slightly alkaline level Helps correct acidic water (ideal after RO filtration) Adds beneficial calcium carbonate to improve taste and support bone health Provides stable, long-term pH correction for RO systems ��Quick Specs Filter Type: 4-in-1 Inline Post Filter (Alkaline ORP Tourmaline Calcite) Size: 2″ × 10″ Connections: 1/4″ & 3/8″ Quick Connect Ports: 1/4″ FNPT (Threaded) Connections: Includes 1/4″ or 3/8″ quick-connect elbow adapters pH Range: up to 8.5–9.5 ORP Range: -50 mV ~ -150 mV Working Temperature: 40F-90 F Lifespan: ~400 gallons or approx. 6–12 months (varies by water quality) SKU / Reorder: 3in1-MAF Compatible SKU: ROR-A3 Ideal For Countertop RO and under-sink RO systems (final polishing stage) Customers who want alkaline drinking water with improved taste Neutralizing low-pH RO water and adding back minerals Systems using 2″ × 10″ inline post-filters Installation Tips Tubing & Quick-Connect Notes Common RO tubing sizes are 1/4″ OD and 3/8″ OD. Cut tubing with a clean, straight 90° cut for the best seal. Push tubing fully into the fitting until it stops, then pull back gently to confirm it locks. Important Use Notes Use with cold water only. For best performance, install as the final stage after the RO membrane. Not Sure Which Option to Choose? If unsure, select Universal Fit (includes 4 elbow adapters for 1/4″ & 3/8″ OD Tubing Connection) Message us before ordering—we’ll help you pick the right fittings. ▶️ Video Installation Guidance Because RO systems and plumbing layouts can vary, there are multiple valid ways to install an inline filter. Search YouTube for “inline RO filter installation” Choose a video that matches your system type (under-sink RO, countertop RO, post-filter installation, etc.) Visual step-by-step videos can make installation easier and faster.