John Guest - Acetal Stem Adapter Fitting - White
John Guest Acetal Stem Adapter Technical Details
| Manufacturer | John Guest Speedfit (UK) |
| Material | Acetal Copolymer with Food-Grade Nitrile O-Ring |
| Connection Type | Quick Connect to National Pipe Thread (NPT) |
| Thread Standard | NPT (Fractional) |
| Approved Applications | Potable Water, Foodstuff, Air, Inert Gases, CO2, Pneumatics, Vacuum |
| Color | White |
| Temperature Resistance | Superior heat resistance vs. polypropylene fittings |
| Mechanism | Grip-and-seal collet with unlock feature |
How to Install John Guest Stem Adapter Fittings
- Ensure tubing is cut square and free of burrs or debris before connection.
- Push the quick-connect end of the stem adapter fully onto the tubing until it bottoms out in the fitting body.
- Thread the NPT end onto your tap, valve, or threaded port by turning clockwise until hand-tight, then snug with a wrench if needed.
- To disconnect, turn the nut counterclockwise to unlock, push the collet toward the fitting body, and pull the tubing free.
NPT Thread Sizing Reference
National Pipe Thread sizing does not match ruler measurements. A 1/4" NPT fitting measures approximately 0.540 inches in actual diameter, not 0.25 inches. When ordering, verify your existing thread size: 1/8" NPT measures 0.405", 1/4" NPT measures 0.540", 3/8" NPT measures 0.675", and 1/2" NPT measures 0.840". The John Guest Stem Adapter is compatible with reverse osmosis systems, undersink filters, ice makers, beverage equipment, and any application requiring a transition from quick-connect tubing to standard threaded connections.
John Guest Acetal Stem Adapter Technical Details
| Manufacturer | John Guest Speedfit (UK) |
| Material | Acetal Copolymer with Food-Grade Nitrile O-Ring |
| Connection Type | Quick Connect to National Pipe Thread (NPT) |
| Thread Standard | NPT (Fractional) |
| Approved Applications | Potable Water, Foodstuff, Air, Inert Gases, CO2, Pneumatics, Vacuum |
| Color | White |
| Temperature Resistance | Superior heat resistance vs. polypropylene fittings |
| Mechanism | Grip-and-seal collet with unlock feature |
How to Install John Guest Stem Adapter Fittings
- Ensure tubing is cut square and free of burrs or debris before connection.
- Push the quick-connect end of the stem adapter fully onto the tubing until it bottoms out in the fitting body.
- Thread the NPT end onto your tap, valve, or threaded port by turning clockwise until hand-tight, then snug with a wrench if needed.
- To disconnect, turn the nut counterclockwise to unlock, push the collet toward the fitting body, and pull the tubing free.
NPT Thread Sizing Reference
National Pipe Thread sizing does not match ruler measurements. A 1/4" NPT fitting measures approximately 0.540 inches in actual diameter, not 0.25 inches. When ordering, verify your existing thread size: 1/8" NPT measures 0.405", 1/4" NPT measures 0.540", 3/8" NPT measures 0.675", and 1/2" NPT measures 0.840". The John Guest Stem Adapter is compatible with reverse osmosis systems, undersink filters, ice makers, beverage equipment, and any application requiring a transition from quick-connect tubing to standard threaded connections.
Original: $0.90
-64%$0.90
$0.32Description
John Guest Acetal Stem Adapter Technical Details
| Manufacturer | John Guest Speedfit (UK) |
| Material | Acetal Copolymer with Food-Grade Nitrile O-Ring |
| Connection Type | Quick Connect to National Pipe Thread (NPT) |
| Thread Standard | NPT (Fractional) |
| Approved Applications | Potable Water, Foodstuff, Air, Inert Gases, CO2, Pneumatics, Vacuum |
| Color | White |
| Temperature Resistance | Superior heat resistance vs. polypropylene fittings |
| Mechanism | Grip-and-seal collet with unlock feature |
How to Install John Guest Stem Adapter Fittings
- Ensure tubing is cut square and free of burrs or debris before connection.
- Push the quick-connect end of the stem adapter fully onto the tubing until it bottoms out in the fitting body.
- Thread the NPT end onto your tap, valve, or threaded port by turning clockwise until hand-tight, then snug with a wrench if needed.
- To disconnect, turn the nut counterclockwise to unlock, push the collet toward the fitting body, and pull the tubing free.
NPT Thread Sizing Reference
National Pipe Thread sizing does not match ruler measurements. A 1/4" NPT fitting measures approximately 0.540 inches in actual diameter, not 0.25 inches. When ordering, verify your existing thread size: 1/8" NPT measures 0.405", 1/4" NPT measures 0.540", 3/8" NPT measures 0.675", and 1/2" NPT measures 0.840". The John Guest Stem Adapter is compatible with reverse osmosis systems, undersink filters, ice makers, beverage equipment, and any application requiring a transition from quick-connect tubing to standard threaded connections.
