1
Confirm the Part
Compare the existing component, connection type, and dimensions with the specifications above.
1/8″ MNPT × 1/4″ OD Quick-Connect Straight Adapter — SKU FT-ST-18-QC14
$1.99
1/4″ OD tubing x 1/8″ thread Straight Quick Connect fitting, qty of 1
- Description
- Additional information
- Reviews (0)
Description
Small-thread RO straight fitting
Connect a 1/8″ threaded RO port directly to standard 1/4″ OD tubing
This straight adapter combines a 1/8″ male NPT connection with a 1/4″ OD push-to-connect tubing port. It is commonly used on RO membrane housings and other filtration components that use the smaller 1/8″ threaded connection.
1/8″ MNPTMale threaded side
1/4″ OD QCPush-to-connect tubing
StraightDirect tubing route
SKU FT-ST-18-QC14MyAquaFilter part number
Key benefits
Designed for straightforward RO system service and replacement
Small ThreadDesigned for compatible 1/8″ threaded RO ports.
RO TubingAccepts standard 1/4″ OD tubing.
Quick ConnectPush-to-connect tubing side for fast service.
Membrane Housing UseCommon on standard residential RO membrane housings.
Specifications
Product details
| Product type | Straight RO quick-connect adapter |
|---|---|
| Thread side | 1/8″ MNPT |
| Tube side | 1/4″ OD push-to-connect |
| Orientation | Straight |
| Thread sealing | PTFE tape or approved thread sealant required |
| Water application | Cold / potable-water filtration |
| Quantity | 1 fitting |
| MyAquaFilter listed shipping dimensions | 6 × 4 × 1 in |
| MyAquaFilter listed shipping weight | 1 oz |
| SKU | FT-ST-18-QC14 |
Before ordering
- ✓Confirm the connection size and style on your existing RO system
- ✓Match tubing, thread, membrane, or flow-rating requirements before installation
- ✓Shut off water and depressurize the system before service
Installation
Verify compatibility, install carefully, and pressure-test before use
2
Install Correctly
Use the connection method appropriate for the part. Do not overtighten plastic threaded components.
3
Check the System
Restore water slowly and inspect the serviced connection for leaks, movement, or abnormal operation.
Good to know
Compatibility matters more than appearance alone
!
Check connection typeThreaded, quick-connect, stem, and capillary components are not automatically interchangeable.
!
Cold-water useUse only in compatible residential RO and water-filtration applications.
Not sure this is the correct replacement?Send the RO system model plus a photo of the existing part and connection.
Additional information
| Weight | 1 oz |
|---|---|
| Dimensions | 6 × 4 × 1 in |
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