The PureT ST-33 is a quick-change encapsulated GAC (granular activated carbon) filter cartridge engineered for the E5HR0550 reverse osmosis system. This twist-on design eliminates housing tools and messy spills during replacement, delivering reliable chlorine and taste/odor reduction in a sealed, sanitary cartridge.
SPECIFICATIONS
Filter Performance & Design
Filter Media
GAC
Granular activated carbon
Design Type
Encapsulated
Twist-on quick change
Model Number
ST-33
Also listed as QCLS-GAC
Primary Function
Chlorine
Taste & odor reduction
Replacement Interval
6-12 months
Based on water quality
Installation
Tool-free
Quarter-turn twist-on mount
TECHNICAL DETAILS
Cartridge Specifications
| Part Number | ST-33 (QCLS-GAC) |
| Brand | PureT |
| Filter Type | Granular Activated Carbon (GAC) |
| Cartridge Style | Encapsulated quick-change twist-on |
| Mounting System | Tool-free quarter-turn bayonet connection |
| Primary Application | Pre-filtration for RO systems, chlorine reduction |
| Recommended Service Life | 6-12 months depending on source water conditions |
COMPATIBILITY & APPLICATIONS
System Integration
The PureT ST-33 quick-change GAC filter is specifically designed for the E5HR0550 reverse osmosis system. This encapsulated cartridge is installed as a pre-filter stage to protect the RO membrane from chlorine damage while reducing taste, odor, and organic contaminants. The twist-on design allows replacement in seconds without shutting off water supply or using filter wrenches, making routine maintenance cleaner and faster. Compatible with any RO system using the quick-change encapsulated mounting platform.
💧 Pro Tip: Replace GAC filters every 6-12 months even if water flow seems normal. Carbon exhaustion happens before flow reduction, and spent carbon won't protect your RO membrane from chlorine damage.
