Description

RO tubing & fitting accessory

Connect a compatible 1/4″ quick-connect port to 3/8″ OD tubing at a 90° angle

These cross-size elbow connectors use a 1/4″ stem that pushes into a compatible 1/4″ quick-connect port and a 3/8″ OD push-to-connect outlet for tubing. They are useful when adapting inline filters, membrane housings, or other filtration components to a larger 3/8″ tubing run.

1/4″ stemPush-in component side
3/8″ OD QCTubing side
90° elbowCompact routing
2-PackMatching source SKU
Key benefits

Compact connection hardware for clean, serviceable filtration layouts

STEM

1/4″ StemPushes into a compatible 1/4″ collet-style port.

3/8

Larger TubingAccepts standard 3/8″ OD tubing.

90°

Right-Angle RoutingHelps avoid tight tubing bends.

NO

No ThreadsNo PTFE tape or thread sealant required.

Specifications

Product details

Product type Stem-to-tube quick-connect elbow
Connection 1/4″ stem × 3/8″ OD quick-connect
Shape 90° elbow
Seal Push-fit; no PTFE tape or sealant
Quantity 2 fittings
Application Inline filters, RO membrane housings, countertop RO
MyAquaFilter listed shipping dimensions 6 × 4 × 1 in
MyAquaFilter listed shipping weight 2 oz
Matching MyWaterClub SKU FT-EL-STEM14-QC38

Before installation

  • Confirm tubing, stem, and thread sizes before ordering
  • Shut off water and depressurize the filtration system before service
  • Cut push-connect tubing square and insert it fully
Installation

Use thread seal only where the connection actually requires it

1

Verify the Connection

Compare the existing tubing, stem, or threaded port with the specifications above.

2

Install Fully

Seat push-connect tubing completely. Apply PTFE tape only to compatible threaded connections.

3

Pressure-Test

Restore water gradually and inspect all serviced connections before regular use.

Good to know

Similar-looking fittings may have different functions

!
OD means outside diameter1/4″ and 3/8″ tubing sizes refer to tubing outside diameter.
!
Do not force fittingsIf a fitting does not seat normally, re-check the connection type and size.
Not sure this fitting is correct?Send a clear photo of the existing connection and tubing size.

Ask a Water Filter Specialist

Additional information

Weight 2 oz
Dimensions 6 × 4 × 1 in

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