Can I Use the Flair-It PEXLock Male Adapter Fitting on the Reinforced Flexible Vinyl Tubing?
Updated 04/24/2025 | Published 04/20/2025
Products Featured in This Question
Question:
Will this work for the reinforced flexible vinyl tubing that all RV manufacturers are installing with pex clamps? I have several water connections where the manufacturer used the reinforced vinyl tubing and secured them to pex fittings with pex pinch rings.
asked by: Raul C
(click to enlarge)
Expert Reply:
Hello Raul,
Thanks for reaching out! We do have connectors that will work for your setup, but I wouldn’t recommend using the Flair-It PEXLock Male Adapter Fitting – 1/2" Barb x 1/2" MPT # FL97ZR with flexible vinyl tubing. Flair-It fittings are specifically designed for use with PEX tubing, which has different characteristics than vinyl, things like flexibility, outer diameter, and how it handles pressure. Even reinforced vinyl tubing can compress differently under a PEX pinch ring, which could lead to leaks or an unreliable connection over time.
Instead, I’d suggest using the Valterra RV Plumbing Fitting – Male Adapter – 1/2" MPT x 1/2" Barb # RF841, and securing it with a hose clamp like the # H03-0002. That combo is better suited for vinyl tubing and should give you a much more reliable seal.
What are are you trying to repair or add?
Product Page this Question was Asked From
Flair-It PEXLock Male Adapter Fitting - 1/2" Barb x 1/2" MPT
- RV Fresh Water
- Water Line Connection
- Adapters
- Plastic
- PEX to NPT Adapter
- 1/2 Inch PEX
- 1/2 Inch MPT
- Flair-It
more information >
Continue Researching
- Search Results: flair~it
- Q&A: Can Flair-It High Pressure Hose # FL57FR be Used with PEX Crimp Rings
- Shop: Flair-It PEX Angle Valve Stop Fitting - 1/2" Barb x 3/8" Compression
- Shop: Flair-It PEXLock Female Adapter Fitting - Swivel - 1/2" Barb x 1/2" FPT
- Q&A: Where to Measure on a Scissor Jack to Determine if it Will Fit on a Trailer
- Shop: Leveling Scissor Jack Set - 30" Lift - 15,000 lbs - QTY 2
- Search Results: side sprayer rv faucets
- Search Results: battery connectors
- Search Results: rv drinking water hoses
- Video: All About the Flair-It SafePEX PEX Tubing
- Video: Flair-It PEX Angle Valve Stop Fitting Review
- Shop: Flair-It PEXLock T-Connector Fitting - 1/2" Barb x 1/2" Barb x 1/2" Barb
- Shop: Flair-It PEXLock 90-Degree PEX Elbow Fitting - 3/8" Barb x 3/8" Barb
- Shop: Flair-It PEXLock 90-Degree PEX Elbow Fitting - 1/2" Barb x 1/2" Barb
- Video: Flair-It PEXLock Female Adapter Fitting Feature Review
- Shop: Flair-It PEXLock Male Adapter Fitting - 1/2" Barb x 1/2" MPT
- Q&A: Availability of Freshwater Elbow Fitting 1/2 inch
- Search Results: weatherstrip rv window parts
- Video: Feature Breakdown: Flair-It PEXLock Female Elbow Fitting
- Video: All You Need to Know About the Flair-It PEX Female Adapter Fitting
- Video: Breaking Down the Flair-It PEX 90-Degree Elbow Fitting
- Video: Checking Out the Flair-It High Pressure Hose
- Search Results: rv window seal
- Search Results: fr49td
- Q&A: What Are the Torque Specs for Trailer Suspension Parts
- Q&A: Availability of 1-1/2 inch Spigot With Flange for Gray Water Tank
- Q&A: Recommended Sewer Spigot W/ Flange for 1-1/2" Piping
- Q&A: Does DWV Fitting for RV Sewer System Fit 1/2 Inch RV Sewer Spigot
- Article: How to Choose a Bike Rack for a Motor Home or RV
Raul
4/23/2025
When I didn't hear back from you right away I reached out to the Flair-It company. They have a photo of the Pexlock clamps holding reinforced vinyl tubing on their Pexlock fittings. I asked if anything extra is needed for the vinyl tubing as the Flair-It fittings require a bushing and a different nut to hold it in place. I was advised by Pexlock customer service that "the PEXLock Clamps will work as is. " for reinforced vinyl tubing with Pexlock fittings.