Inline Calcite (Alkaline/Acid Neutralization) filter, made in USA, NSF Certified, 1/4" & 3/8" OD Tubing Connections (SKU# K2548-BB)
$17.01
$26.37
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.
