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Product Description
Smooth Barbed Adapter Fitting 1 inch slip to 3/4 smooth barb Barbed Adapter
Fixing a leak or replacing a worn plumbing connection? The Smooth Barbed Adapter Fitting 425-5010 is the reliable PVC repair part that gets your spa's plumbing back in working order. Shop and order at Western Tub and Pool.
Call us: 1-855-248-0777 | Email: fixmytub@gmail.com
Why choose the 425-5010 Barbed Adapter Fitting?
Whether you're a DIY hot tub owner or a spa technician, the right fitting makes all the difference. Here's what this replacement part delivers:
- Durable PVC construction built for the demands of spa and pool plumbing.
- Smooth barbed design for a secure, leak-resistant connection to flexible tubing.
- A direct replacement part for common spa plumbing repairs.
- Backed by expert help — not sure if it's the right fit? Our team is a call or email away.
Browse our full online catalogue for related repair parts, or reach out and we'll help you track down exactly what you need.
Compatible hot tubs and models
The 425-5010 fitting and related repair parts are commonly used across a wide range of popular spa brands and models. Supported brands include:
- Hot Spring
- Dynasty
- Calspa
- Stronspa
- Tiger River
- Limelight
- Hot Spot
- Solana
- Freeflow
- Fantasy
- Aquaterra
- Lifesmart
Don't see your model listed? Give us a call or send an email — we'll confirm compatibility for you.
Product specifications
We want you to order with confidence. Detailed dimensions, weight, and material specifications for the 425-5010 fitting are being confirmed. For exact measurements before you buy, please contact our team at 1-855-248-0777 or fixmytub@gmail.com and we'll provide the details you need.
Frequently asked questions
How do I know if the 425-5010 is the right part for my spa?
If you know your part number, match it against ours. If not, send us pictures of the part along with the make, model, and serial number of your hot tub, and our team will confirm the correct fitting for you.
What if I can't find my part?
Hard-to-find parts are our specialty. Email us at fixmytub@gmail.com with as much detail as possible and we'll help you locate exactly what you need.
Why do some part numbers have letters after them?
Western Tub and Pool is an international e-retailer. Because warehouses in different regions may stock the same part, we add a suffix based on origin:
- U — U.S.A.
- C — Canada
- E — Europe
- A — Asia
Some products may appear as duplicates from different regions. Note that a part's origin can affect shipping.
Can you help me find other spa repair parts?
Absolutely. Check our online catalogue or reach out directly — we carry a wide range of spa and hot tub replacement parts.
Get expert help with hard-to-find parts
Struggling to track down a specific spa part? Send us an email at fixmytub@gmail.com with your part number (if known) or pictures, plus the make, model, and serial number of your hot tub. Our team will help you find the right fit.
Shop and order at Western Tub and Pool.
Call 1-855-248-0777 | Email fixmytub@gmail.com
![1/4″ x 3/8″ Barbed Adapter — Spa & Hot Tub Replacement Part
Find the exact barbed adapter your hot tub needs, fast. The 1/4″ x 3/8″ Barbed Adapter is a small but essential plumbing fitting used across a wide range of spa and hot tub models. Whether you're reconnecting an air line, replacing a worn fitting, or restoring your ozonator connection, this is the part that gets your tub back up and running.
Shop and order at Western Tub and Pool.
? [1-855-248-0777] | ✉️ [fixmytub@gmail.com]
What Is the 1/4″ x 3/8″ Barbed Adapter?
This barbed reducer adapter connects 1/4″ vinyl tubing to 3/8″ vinyl hose — or vice versa — creating a reliable, leak-resistant junction in your spa's plumbing system. It is commonly used in air line systems, ozonator connections, and various pump-side plumbing configurations across many hot tub brands and models.
SKU: SPA/WW672-4350
Also known as: Barb Adapter 1/4″ x 3/8″ | PVC Tubing Reducer 3/8″ Barb x 1/4″ Barb | Barbed Fitting 1/4″ MPT x 3/8″ Barb
Product Specifications
Specification
Details
Part Name
1/4″ x 3/8″ Barbed Adapter
SKU / Part Number
SPA/WW672-4350
Thread Type
1/4″ MPT (Male Pipe Thread) x 3/8″ Barb
Shipping Dimensions
1.5″ x 0.78″ x 0.78″
Shipping Weight
0.05 lbs
Material
PVC / Plastic
Application
Connects 1/4″ and 3/8″ vinyl tubing in spa plumbing systems
Compatible Hot Tubs, Spas & Models
This adapter is a widely used spa plumbing component that fits many hot tub brands and models. Known compatible applications include:
Jacuzzi — J-300 Series Pumps
Strong Spas — Various models using WW672-4350 specification
Waterway Plastics — Systems using RF850 barb adapter fittings
Many additional spa and hot tub brands using standard 1/4″ x 3/8″ barbed plumbing connections
Not sure if this is the right part for your tub? Don't guess — call us at 1-855-248-0777 or email fixmytub@gmail.com with your hot tub's make, model, and serial number, and our team will confirm compatibility before you order.
Common Uses for This Part
Connecting ozonator tubing to air line plumbing
Reducing or expanding between 1/4″ and 3/8″ vinyl hose runs
Replacing cracked, brittle, or leaking barbed fittings in pump assemblies
Repairing air injection and hydrotherapy jet plumbing systems
Frequently Asked Questions
What does a 1/4″ x 3/8″ barbed adapter do?
It creates a secure, barbed connection between two different-sized vinyl tubes — one measuring 1/4″ and the other 3/8″. The barbed design grips the inside of the tubing to prevent slipping or leaking under normal spa operating pressure.
How do I know if this is the right size for my hot tub?
Check the tubing currently connected to the fitting you need to replace. If one side is 1/4″ tubing and the other is 3/8″ tubing, this is your part. If you're unsure, send us a photo of the existing fitting along with your hot tub's make, model, and serial number at fixmytub@gmail.com.
Is this a hard-to-find part?
It can be. Many older or discontinued spa models still rely on these fittings, and they're not always easy to source locally. Western Tub and Pool specializes in exactly these kinds of hard-to-find replacement parts — give us a call and we'll help you track down what you need.
What is the part number for this adapter?
The SKU is SPA/WW672-4350. Cross-reference part numbers include RF850 (Waterway Plastics) and barb25x38.
Can I order by phone or email?
Absolutely. Call us at 1-855-248-0777 or send your order and inquiries to fixmytub@gmail.com. Our team is happy to assist with part identification, compatibility checks, and orders.
Do you offer assistance identifying other replacement parts?
Yes. If you're not sure what part you need, send us an email with a photo of the part, along with your hot tub's make, model, and serial number. We'll help you identify the right replacement.
Can't Find the Right Part? We Can Help.
Western Tub and Pool specializes in hard-to-find hot tub and spa replacement parts. If you're not sure which part you need, don't worry — our team is here to help you get it right the first time.
Here's how to get assistance:
Check your part number if known
Take a photo of the existing part and its surrounding plumbing
Note your hot tub's make, model, and serial number
Send everything to fixmytub@gmail.com — we'll take it from there
Shop and Order at Western Tub and Pool
? Call us: 1-855-248-0777
✉️ Email us: fixmytub@gmail.com
Browse our full online catalogue for more spa parts, hot tub components, and repair accessories. From common fittings to discontinued parts, Western Tub and Pool is your go-to source for hot tub repairs done right.](https://cdn11.bigcommerce.com/s-b7yzllubsu/images/stencil/500x659/products/4199/6240/SPA-WW672-4350__21903.1773434048.jpg?c=2 "1/4″ x 3/8″ Barbed Adapter — Spa & Hot Tub Replacement Part
Find the exact barbed adapter your hot tub needs, fast. The 1/4″ x 3/8″ Barbed Adapter is a small but essential plumbing fitting used across a wide range of spa and hot tub models. Whether you're reconnecting an air line, replacing a worn fitting, or restoring your ozonator connection, this is the part that gets your tub back up and running.
Shop and order at Western Tub and Pool.
? [1-855-248-0777] | ✉️ [fixmytub@gmail.com]
What Is the 1/4″ x 3/8″ Barbed Adapter?
This barbed reducer adapter connects 1/4″ vinyl tubing to 3/8″ vinyl hose — or vice versa — creating a reliable, leak-resistant junction in your spa's plumbing system. It is commonly used in air line systems, ozonator connections, and various pump-side plumbing configurations across many hot tub brands and models.
SKU: SPA/WW672-4350
Also known as: Barb Adapter 1/4″ x 3/8″ | PVC Tubing Reducer 3/8″ Barb x 1/4″ Barb | Barbed Fitting 1/4″ MPT x 3/8″ Barb
Product Specifications
Specification
Details
Part Name
1/4″ x 3/8″ Barbed Adapter
SKU / Part Number
SPA/WW672-4350
Thread Type
1/4″ MPT (Male Pipe Thread) x 3/8″ Barb
Shipping Dimensions
1.5″ x 0.78″ x 0.78″
Shipping Weight
0.05 lbs
Material
PVC / Plastic
Application
Connects 1/4″ and 3/8″ vinyl tubing in spa plumbing systems
Compatible Hot Tubs, Spas & Models
This adapter is a widely used spa plumbing component that fits many hot tub brands and models. Known compatible applications include:
Jacuzzi — J-300 Series Pumps
Strong Spas — Various models using WW672-4350 specification
Waterway Plastics — Systems using RF850 barb adapter fittings
Many additional spa and hot tub brands using standard 1/4″ x 3/8″ barbed plumbing connections
Not sure if this is the right part for your tub? Don't guess — call us at 1-855-248-0777 or email fixmytub@gmail.com with your hot tub's make, model, and serial number, and our team will confirm compatibility before you order.
Common Uses for This Part
Connecting ozonator tubing to air line plumbing
Reducing or expanding between 1/4″ and 3/8″ vinyl hose runs
Replacing cracked, brittle, or leaking barbed fittings in pump assemblies
Repairing air injection and hydrotherapy jet plumbing systems
Frequently Asked Questions
What does a 1/4″ x 3/8″ barbed adapter do?
It creates a secure, barbed connection between two different-sized vinyl tubes — one measuring 1/4″ and the other 3/8″. The barbed design grips the inside of the tubing to prevent slipping or leaking under normal spa operating pressure.
How do I know if this is the right size for my hot tub?
Check the tubing currently connected to the fitting you need to replace. If one side is 1/4″ tubing and the other is 3/8″ tubing, this is your part. If you're unsure, send us a photo of the existing fitting along with your hot tub's make, model, and serial number at fixmytub@gmail.com.
Is this a hard-to-find part?
It can be. Many older or discontinued spa models still rely on these fittings, and they're not always easy to source locally. Western Tub and Pool specializes in exactly these kinds of hard-to-find replacement parts — give us a call and we'll help you track down what you need.
What is the part number for this adapter?
The SKU is SPA/WW672-4350. Cross-reference part numbers include RF850 (Waterway Plastics) and barb25x38.
Can I order by phone or email?
Absolutely. Call us at 1-855-248-0777 or send your order and inquiries to fixmytub@gmail.com. Our team is happy to assist with part identification, compatibility checks, and orders.
Do you offer assistance identifying other replacement parts?
Yes. If you're not sure what part you need, send us an email with a photo of the part, along with your hot tub's make, model, and serial number. We'll help you identify the right replacement.
Can't Find the Right Part? We Can Help.
Western Tub and Pool specializes in hard-to-find hot tub and spa replacement parts. If you're not sure which part you need, don't worry — our team is here to help you get it right the first time.
Here's how to get assistance:
Check your part number if known
Take a photo of the existing part and its surrounding plumbing
Note your hot tub's make, model, and serial number
Send everything to fixmytub@gmail.com — we'll take it from there
Shop and Order at Western Tub and Pool
? Call us: 1-855-248-0777
✉️ Email us: fixmytub@gmail.com
Browse our full online catalogue for more spa parts, hot tub components, and repair accessories. From common fittings to discontinued parts, Western Tub and Pool is your go-to source for hot tub repairs done right.")
