Payne Nylon Male to Male Hex Close - NPT
Nylon Male to Male Hex Close NPT Fitting
The Payne Nylon Male to Male Hex Close NPT fitting provides a threaded connection point between two filter housings in series. Manufactured from chemical-resistant nylon with NPT threads on both ends, this close nipple fitting allows for compact inline installations. Use PTFE plumber's tape to ensure a leak-free seal on both connections.
NPT Thread Size Chart
NPT threads do not match their nominal size when measured with a ruler. The table below shows the actual outer diameter you'll measure compared to the NPT size designation. This is critical for selecting the correct fitting size for your housing ports.
| NPT Size | Actual Diameter |
|---|---|
| 1/8" | 0.405" |
| 1/4" | 0.540" |
| 3/8" | 0.675" |
| 1/2" | 0.840" |
| 3/4" | 1.050" |
| 1" | 1.315" |
| 1-1/2" | 1.900" |
Standard NPT Threaded Housings
Compatible with any standard filter housing featuring male NPT ports. Commonly used to connect two 10-inch or 20-inch housings in series for sediment-carbon staging, twin carbon configurations, or multi-stage whole house systems. Works with Payne, Pentek, Culligan, Watts, and other major housing brands with matching NPT port sizes. Select the NPT size that matches your housing outlet and inlet threads.
Payne fittings are manufactured to ANSI/ASME B1.20.1 NPT thread standards for reliable, industry-standard connections in residential and commercial water treatment systems.
Nylon Male to Male Hex Close NPT Fitting
The Payne Nylon Male to Male Hex Close NPT fitting provides a threaded connection point between two filter housings in series. Manufactured from chemical-resistant nylon with NPT threads on both ends, this close nipple fitting allows for compact inline installations. Use PTFE plumber's tape to ensure a leak-free seal on both connections.
NPT Thread Size Chart
NPT threads do not match their nominal size when measured with a ruler. The table below shows the actual outer diameter you'll measure compared to the NPT size designation. This is critical for selecting the correct fitting size for your housing ports.
| NPT Size | Actual Diameter |
|---|---|
| 1/8" | 0.405" |
| 1/4" | 0.540" |
| 3/8" | 0.675" |
| 1/2" | 0.840" |
| 3/4" | 1.050" |
| 1" | 1.315" |
| 1-1/2" | 1.900" |
Standard NPT Threaded Housings
Compatible with any standard filter housing featuring male NPT ports. Commonly used to connect two 10-inch or 20-inch housings in series for sediment-carbon staging, twin carbon configurations, or multi-stage whole house systems. Works with Payne, Pentek, Culligan, Watts, and other major housing brands with matching NPT port sizes. Select the NPT size that matches your housing outlet and inlet threads.
Payne fittings are manufactured to ANSI/ASME B1.20.1 NPT thread standards for reliable, industry-standard connections in residential and commercial water treatment systems.
Description
Nylon Male to Male Hex Close NPT Fitting
The Payne Nylon Male to Male Hex Close NPT fitting provides a threaded connection point between two filter housings in series. Manufactured from chemical-resistant nylon with NPT threads on both ends, this close nipple fitting allows for compact inline installations. Use PTFE plumber's tape to ensure a leak-free seal on both connections.
NPT Thread Size Chart
NPT threads do not match their nominal size when measured with a ruler. The table below shows the actual outer diameter you'll measure compared to the NPT size designation. This is critical for selecting the correct fitting size for your housing ports.
| NPT Size | Actual Diameter |
|---|---|
| 1/8" | 0.405" |
| 1/4" | 0.540" |
| 3/8" | 0.675" |
| 1/2" | 0.840" |
| 3/4" | 1.050" |
| 1" | 1.315" |
| 1-1/2" | 1.900" |
Standard NPT Threaded Housings
Compatible with any standard filter housing featuring male NPT ports. Commonly used to connect two 10-inch or 20-inch housings in series for sediment-carbon staging, twin carbon configurations, or multi-stage whole house systems. Works with Payne, Pentek, Culligan, Watts, and other major housing brands with matching NPT port sizes. Select the NPT size that matches your housing outlet and inlet threads.
Payne fittings are manufactured to ANSI/ASME B1.20.1 NPT thread standards for reliable, industry-standard connections in residential and commercial water treatment systems.
