Sterling Water Treatment Universal RO Membrane, 50 GDC - RO-TFC50

Refresh Sterling RO-TFC50 Universal 50 GPD TFC Reverse Osmosis Membrane

Restore like-new drinking water performance with the Sterling RO-TFC50 universal RO membrane. This thin-film composite (TFC) element is rated 50 gallons per day, reducing dissolved minerals (TDS) that cause flat taste and scale. Designed for under-sink RO systems, it drops into standard residential membrane housings and pairs with your existing pre/post filters. A great pick for routine maintenance on Sterling DWSB-series systems and many comparable 5-stage ROs. Replace on schedule to keep flow and quality consistent.

• Brand: Sterling Water Treatment
• MPN: RO-TFC50
• Type: Universal Reverse Osmosis Membrane (TFC)
• Size/Capacity: 50 GPD (per 24-hour rating)
• Material/Finish: Thin-Film Composite (spiral-wound element)
• Performance: Reduces total dissolved solids for improved taste/odor (membrane stage of RO)
• Connections/Fit: Fits standard residential 1812-style RO membrane housings; compatible with Sterling DWSB-TFC-50 systems
• Dimensions: Industry-standard 1812 format, approx. 11.75" L × 1.8" Dia (verify your housing)
• Included: Membrane element (housing, fittings, and filters sold separately)
• Certifications: Not specified; see system/manual
• Warranty: See Sterling Water Treatment warranty terms

Better Taste With Real TDS Reduction

As the heart of your RO system, the TFC membrane is the stage that reduces dissolved minerals (TDS) that cause off-tastes and scaling. Swapping in a fresh RO-TFC50 restores that core performance so ice, coffee, and cooking water taste clean again.

Everyday Output For Households

Rated 50 gallons per day, this element supports typical under-sink use—drinking, cooking, and a refrigerator line—without over-stressing the system. Keep prefilters current to protect the membrane and maintain consistent production.

Universal 1812 Fit, Straightforward Swap

Built in the common 1812 size, the membrane is made to slide into standard residential housings used by many brands. That makes maintenance a simple pull-and-replace job with basic hand tools—no special adapters for most installs.

Made For Sterling DWSB Systems

Sterling specifies a universal 50 GPD membrane for its DWSB-TFC-50 reverse osmosis systems, so this RO-TFC50 is an appropriate replacement when you’re refreshing that platform or similar 5-stage layouts.

Protect The Membrane, Extend Service Life

For best results, replace sediment and carbon prefilters on schedule—these stages remove particulates and chlorine that can damage a TFC membrane. Many homeowners change the membrane about every 24 months depending on water quality and usage.

Sized Right For Tight Under-Sink Spaces

At roughly 11.75" long by 1.8" diameter, the element fits compact housings and brackets without crowding shutoffs or supply lines. Always confirm housing size before ordering if you’re uncertain.

What’s In The Box

This is the membrane element only. Re-use your existing housing and O-rings if they’re in good condition, or replace them during service if worn to prevent leaks.