The QMP301 is a 2.5" x 12" residential membrane housing designed for standard RO systems, featuring 90° ports with 1/8 NPT threading for compact under-sink installations. Manufactured by QMP USA, this housing accommodates most residential reverse osmosis membranes and includes both the main body and cap assembly.
SPECIFICATIONS
QMP301 Housing Dimensions & Ports
Housing Size
2.5" × 12"
Standard residential RO membrane dimensions
Port Configuration
90° Angle
Space-saving design for tight cabinet installations
Threading
1/8 NPT
Standard residential fitting connection
Includes
Body + Cap
Complete housing assembly
Manufacturer
QMP USA
Custom RO housing specialist
Application
Residential
Home reverse osmosis systems
TECHNICAL DETAILS
QMP301 Membrane Housing Specifications
| Model Number | QMP301 |
| Housing Dimensions | 2.5" diameter × 12" length |
| Port Type | 90° angled ports with 1/8 NPT threading |
| Membrane Compatibility | Standard residential RO membranes (most 2.5" × 12" membranes) |
| Material | Durable food-grade plastic |
| Vendor | Watts / QMP USA |
| Included Components | Housing body and cap assembly |
COMPATIBILITY & APPLICATIONS
System Compatibility
The QMP301 housing fits most residential reverse osmosis systems that use standard 2.5" × 12" membranes. The 90° port configuration is particularly useful for under-sink installations where space is limited, allowing tubing to route horizontally rather than vertically. This housing is compatible with standard 1/8 NPT fittings commonly used in residential RO systems, including quick-connect and compression fittings. Suitable for replacement or new system builds where a compact, reliable membrane housing is needed.
💧 The 90° port design makes this housing ideal for tight under-sink spaces where vertical clearance is limited. When replacing an existing housing, verify your membrane dimensions and port threading before ordering to ensure proper fit.
