Pentair FreshPoint GRO50 Reverse Osmosis Membrane 50 GPD — High Efficiency, 675‑Gallon Service Life

Pentair FreshPoint GRO50 is a high-efficiency 50 GPD reverse osmosis replacement membrane engineered to restore your FreshPoint 161110 undersink system’s capacity and improve the taste and clarity of your drinking water.

The GRO50 membrane is a direct-fit replacement for the Pentair FreshPoint 161110 undersink RO unit, built to reduce dissolved solids and a broad range of common contaminants. Its 50-gallon-per-day production rate and 675-gallon service capacity provide plenty of filtered water for everyday kitchen use, while the color-coded, click-in design simplifies swaps so you can maintain peak performance without tools or extra parts.

How will this membrane affect my everyday water use?

Installing the GRO50 returns your reverse osmosis system to its designed output and filtration performance. You’ll notice fuller water flow from the RO faucet and more consistent taste and clarity versus an aged membrane.

• Restores up to 50 gallons per day of purified water production
• 675-gallon service life before replacement is recommended
• Improves taste and reduces dissolved solids for drinking and cooking

Is installation difficult — do I need tools or service?

The GRO50 is built for quick, tool-free swaps using a color-coded, click-in connector. Matching the membrane’s color coding to your FreshPoint housing lets you snap it into place and resume filtration in minutes.

• Click-in design requires no special tools
• Color coding prevents incorrect connections
• Simple homeowner installation typically takes only a few minutes

When should I replace the membrane, and what maintenance is required?

Pentair recommends replacing the GRO50 every 18 months or sooner if you observe reduced water output or degraded taste. Regular pre- and post-filter changes help protect membrane life and keep performance steady between replacements.

• Standard replacement interval: 18 months
• Replace earlier if production rate or water taste declines
• Keep a spare on hand to avoid service interruptions

What specific systems and benefits does this membrane support?

This membrane is engineered specifically for the Pentair FreshPoint 161110 undersink RO system, so fit and performance are assured. It reduces dissolved solids and common impurities to deliver cleaner, better-tasting water for drinking and food preparation.

• Drop-in compatibility with FreshPoint 161110 systems
• High-efficiency design balances flow and contaminant reduction
• Extended-capacity membrane for fewer replacements over time

Who is this for: The Pentair FreshPoint GRO50 is aimed at homeowners and renters who own a FreshPoint 161110 undersink reverse osmosis system and want a straightforward, reliable membrane swap. It’s also a good choice for busy households that prefer longer service intervals, easy tool-free maintenance, and consistent, high-quality drinking water for cooking and daily use.