Inline Calcite (Alkaline/Acid Neutralization) filter, made in USA, NSF Certified, 1/4″ & 3/8″ OD Tubing Connections (SKU# K2548-BB)

Description

Omnipure Inline Calcite / Acid Neutralizer Filter – 2″ x 10″, NSF Certified

The Omnipure Calcite Inline Filter is an NSF Certified solution designed to raise low pH water to a more neutral and alkaline level, protecting your plumbing, appliances, and improving the taste of your drinking water. This filter uses high-purity calcite media to gently elevate pH levels from approximately 6.0–7.0 to 8.0–9.5.

Commonly used as the final stage in reverse osmosis (RO) systems, this inline post-filter improves mineral balance and prevents the potential corrosiveness of acidic water.

Key Benefits:

• Raises pH of acidic water to a healthier, more neutral/alkaline range

• Improves taste and mineral content after RO filtration

• Ideal for use in areas with naturally acidic water or low-mineral RO output

• Made in the USA by Omnipure

• NSF Certified for safety and performance

• Simple inline installation

Specifications:

• Model: Omnipure Calcite Post Filter

• Media: High-grade calcite (calcium carbonate)

• Size: 10″ length x 2″ diameter

• Connection: 1/4″ FPT (Female Pipe Thread)

• Includes: 2 Quick-Connect Elbows (1/4″ thread)

• Micron Rating: Nominal – none

• Capacity: 125 grains

• Operating Temperature: 36°F – 100°F

• Flow Rate: 0.50 GPM

• Max Pressure: 125 PSI

Recommended Use:

• As the last stage in Reverse Osmosis (RO) water systems

• Ideal for drinking water remineralization

• Perfect for residential or coffee setups needing balanced pH

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.