What a Stealth Membrane Elbow Connects
The membrane housing to the tubing. One end is 1/8 in male NPT, the other a 1/4 in quick connect. The ninety degree turn lets the line leave the housing without a kink. Retailers list it in black and in white. The fitting is the same either way.
Working With a 1/4 in Quick Connect on an RO Line
The tube pushes in and locks. Releasing it is the part people fight: press the collet ring in toward the fitting while pulling the tube out, rather than pulling harder. Two wraps of thread tape on the NPT end is plenty, and do not crank it into plastic. These are the parts that fail quietly on an older system. A fitting weeping at the housing reads like a membrane problem for weeks before anyone finds the puddle. A spare or two on the shelf costs almost nothing at this price. One caution on quantity. Several retailers sell these only in packs of ten, so a bulk price seen elsewhere is not the same unit as a single fitting.
Key Features
- 1/8 in male NPT thread: The housing end, sized for Stealth RO membrane housings.
- 1/4 in quick connect: Push the tube in to lock. Press the collet in to release it.
- Ninety degree turn: The line leaves the housing without a kink in the tubing.
- Black or white: Retailers list both. The fitting itself is unchanged.
- A quiet failure point: A weeping housing fitting reads like a membrane fault for weeks.
- Two wraps of tape: Thread tape on the NPT end, and do not crank it into plastic.
Technical Specifications
| Specification | Value |
|---|---|
| Brand | HydroLogic |
| Part Number | HL14155 |
| Type | Elbow fitting, membrane housing |
| Thread End | 1/8 in male NPT |
| Tube End | 1/4 in quick connect |
| Angle | 90 degrees |
| Fits | Stealth RO membrane housings |
| Colour | Black or white, depending on stock |
| Sealing | Thread tape on the NPT end |
| Release Method | Press the collet ring in while pulling the tube |