
Mazzei - Tube Adapter - Hose Barb Connection Fitting x Male Threaded NPT
Mazzei Tube Adapter – Hose Barb to Male NPT Connection Fitting
The Mazzei tube adapter provides a reliable transition between flexible tubing and male threaded NPT ports. Engineered from durable polyethylene for chemical resistance and installed on thousands of Mazzei injector systems for chemical feed, aeration, and ozone applications.
A common error in selecting NPT fittings is assuming the thread size matches ruler measurements. NPT threads measure larger than their nominal size. A 1/4" NPT fitting actually measures approximately 0.540" in outer diameter, not 0.250". This is a tapered thread standard designed for sealed connections in plumbing and industrial systems. Always verify thread size with the reference below before ordering.
| Hose Barb Size | NPT Thread (Nominal) | Actual OD Measured |
|---|---|---|
| Varies by model | 1/8" | 0.405" |
| Varies by model | 1/4" | 0.540" |
| Varies by model | 3/8" | 0.675" |
| Varies by model | 1/2" | 0.840" |
Compatible with Mazzei venturi injectors across chemical feed, ozone, and compressed air applications. Used to connect polyethylene or vinyl tubing to male NPT ports on injector bodies, manifolds, and dosing equipment. Confirm barb and thread size match your specific Mazzei model and tubing inner diameter before installation.
Mazzei tube adapters are precision-molded OEM components built for years of reliable service in demanding water treatment environments.
Mazzei Tube Adapter – Hose Barb to Male NPT Connection Fitting
The Mazzei tube adapter provides a reliable transition between flexible tubing and male threaded NPT ports. Engineered from durable polyethylene for chemical resistance and installed on thousands of Mazzei injector systems for chemical feed, aeration, and ozone applications.
A common error in selecting NPT fittings is assuming the thread size matches ruler measurements. NPT threads measure larger than their nominal size. A 1/4" NPT fitting actually measures approximately 0.540" in outer diameter, not 0.250". This is a tapered thread standard designed for sealed connections in plumbing and industrial systems. Always verify thread size with the reference below before ordering.
| Hose Barb Size | NPT Thread (Nominal) | Actual OD Measured |
|---|---|---|
| Varies by model | 1/8" | 0.405" |
| Varies by model | 1/4" | 0.540" |
| Varies by model | 3/8" | 0.675" |
| Varies by model | 1/2" | 0.840" |
Compatible with Mazzei venturi injectors across chemical feed, ozone, and compressed air applications. Used to connect polyethylene or vinyl tubing to male NPT ports on injector bodies, manifolds, and dosing equipment. Confirm barb and thread size match your specific Mazzei model and tubing inner diameter before installation.
Mazzei tube adapters are precision-molded OEM components built for years of reliable service in demanding water treatment environments.
Original: $2.99
-65%$2.99
$1.05Description
Mazzei Tube Adapter – Hose Barb to Male NPT Connection Fitting
The Mazzei tube adapter provides a reliable transition between flexible tubing and male threaded NPT ports. Engineered from durable polyethylene for chemical resistance and installed on thousands of Mazzei injector systems for chemical feed, aeration, and ozone applications.
A common error in selecting NPT fittings is assuming the thread size matches ruler measurements. NPT threads measure larger than their nominal size. A 1/4" NPT fitting actually measures approximately 0.540" in outer diameter, not 0.250". This is a tapered thread standard designed for sealed connections in plumbing and industrial systems. Always verify thread size with the reference below before ordering.
| Hose Barb Size | NPT Thread (Nominal) | Actual OD Measured |
|---|---|---|
| Varies by model | 1/8" | 0.405" |
| Varies by model | 1/4" | 0.540" |
| Varies by model | 3/8" | 0.675" |
| Varies by model | 1/2" | 0.840" |
Compatible with Mazzei venturi injectors across chemical feed, ozone, and compressed air applications. Used to connect polyethylene or vinyl tubing to male NPT ports on injector bodies, manifolds, and dosing equipment. Confirm barb and thread size match your specific Mazzei model and tubing inner diameter before installation.
Mazzei tube adapters are precision-molded OEM components built for years of reliable service in demanding water treatment environments.












