Watts Reverse Osmosis Parts
Watts OR-4 O-Ring
Replacement seal for Watts RO filter housings and fittings
OEM Part
Watts Genuine
Leak Prevention
The Watts OR-4 O-Ring is a precision-molded seal designed to maintain watertight connections in Watts reverse osmosis systems and filter housings. This OEM replacement part prevents leaks at threaded connections and housing caps where older o-rings have compressed or degraded over time.
SPECIFICATIONS
OR-4 O-Ring Details
| Manufacturer | Watts |
| Model Number | OR-4 |
| Material | Elastomer |
| Application | RO housings, fittings, caps |
| Replacement Interval | As needed or annually |
COMPATIBILITY
Works With Watts RO Systems
The OR-4 O-Ring is compatible with various Watts reverse osmosis filter housings, membrane housings, and threaded fittings. Check your existing o-ring size or consult your system manual to confirm fitment. Replace o-rings whenever you notice moisture around connections, during filter changes, or annually as preventive maintenance to avoid slow drips that can cause water damage over time.
