Enjoy Refreshing Water with Sterling DWSB-TFC-50 50 GPD Reverse Osmosis Drinking Water System

Get bottle-quality water right at the sink for cooking, coffee, ice, and everyday drinking. The Sterling DWSB-TFC-50 is a 5-stage under-sink RO that reduces dissolved solids and improves taste and odor, finishing with a post-carbon polish for a fresh, clean finish. Sized for typical households, the 50 GPD TFC membrane pairs with a compact storage tank to keep water ready on demand. Maintenance is straightforward with standard 10″ cartridges and quick-connect fittings.

• Brand: Sterling Water Treatment
• MPN: DWSB-TFC-50
• Type: 5-stage under-sink reverse osmosis (RO) drinking water system
• Size/Capacity: 50 GPD membrane (typical production varies with pressure/temperature/TDS)
• Material/Finish: Aluminum bracket; standard 10″ filter housings; TFC membrane; pressurized RO tank
• Performance: 70–95% TDS rejection (max feed TDS 800 ppm); feed water temp 40–100 °F; recommended feed pressure 40–100 psig
• Connections/Fit: Under-sink install with RO faucet kit; 1/4″ OD tubing with quick-connects; feed saddle valve and drain connection included; optional icemaker hookup
• Dimensions: RO assembly approx. 16″ W × 20″ H × 5.5″ D; storage tank approx. 10″ dia × 15″ H
• Included: RO assembly (sediment + 2× carbon pre-filters, RO membrane, post-carbon), pressurized storage tank, faucet kit, tubing, feed valve, drain clamp
• Certifications/Compliance: Use on microbiologically safe water; see manual for operating limits and local code requirements
• Warranty: Limited manufacturer warranty (see Sterling terms)

Save Water & Improve Taste

A thin-film composite membrane reduces dissolved minerals, while the final carbon stage polishes taste and odor. With a 50 GPD rating and 70–95% TDS reduction, you’ll notice cleaner flavor in beverages and clearer ice for everyday use.

Everyday Performance You Can Feel

Sized for typical households, the system keeps a pressurized tank of RO water ready at the faucet. Expect best performance with feed water within the published limits (40–100 psig, 40–100 °F, <=800 ppm TDS), helping ensure steady flow and quality.

Durable, Serviceable Design

Standard 10″ sediment and carbon cartridges protect the TFC membrane and are easy to replace on a regular schedule. The aluminum bracket and proven components support long service life under the sink or in a nearby basement location.

Installer-Friendly Kit

Everything needed for a typical install is in the box: faucet, tank, feed saddle valve, drain clamp, and tubing with quick-connect fittings. An optional icemaker tee can be added for chilled RO water at the fridge.

Sized Right For Tight Cabinets

The compact manifold (16″ × 20″ × 5.5″) and tank (10″ × 15″) fit neatly under most sinks. If mounting in a basement, plan a clean tubing run and leave clearance for filter changes.

Know Your Water & Limits

For best results, feed water should have < 7 gpg hardness (or be softened), < 0.1 ppm iron, < 0.05 ppm manganese, and no hydrogen sulfide. Use only on potable water; pre-treat if your source is outside these limits.

Simple Upkeep, Low Cost

Replace pre-filters per the manual (often ~6 months, site-dependent) to protect the membrane and maintain flow. The post-carbon “polish” filter is replaced when taste changes or on schedule—no special tools required.

Weight	28.0 lb
Collection	DWSB Series
Color	White
Contaminants Filtered	Iron, Bacteria
Control Type	Manual
Filter Type	Reverse Osmosis
Finish	Chrome
Finish Type	Polished
Handle Type	Lever
Height	19.00 in.
Horse Power	1/3
Length	18.50 in.
Material	Brass
Number of Faucet Handles	1
Number of Handles	1
Room	Kitchen
Sub Type	Black Friday
Type	Reverse Osmosis
Width	17.25 in.
Inventory Number	STWDWSBTFC50
MPN	DWSB-TFC-50

• Spec Sheet
• Installation Guide