Replacement 3/8" Liquid Line Stub Tube for Select HVAC Coils and Air Handlers
The CPL01420 3/8-Inch Liquid Line Stub Tube is a replacement refrigerant-line connection tube used on select HVAC evaporator coils and air handlers. It connects the field-installed liquid line to the indoor coil’s piston or fixed-orifice metering-device assembly.
Common HVAC Names for This Part
This component is commonly referred to by HVAC technicians as a piston tailpiece, piston tail pipe, liquid line tail pipe, coil stub tube, or liquid line connection tube.
Product Features
- Replacement liquid line stub tube
- 3/8" nominal liquid line connection
- Used with select evaporator coils and air handlers
- Connects the field-installed liquid line to the coil metering-device assembly
- Copper tube construction with connection fitting
- Designed for brazed or sweat refrigerant-line installation
- Also replaces or may be referenced as part number CPL1420
Common Equipment Brands
This style of liquid line tailpiece is used in select equipment sold under brands including Oxbox, DiamondAir, Ameristar, Bosch, MRCOOL, and others. Compatibility depends on the complete equipment model, serial number, and manufacturing revision.
Important: This listing is for the liquid line stub tube only. The refrigerant piston, piston sleeve, connection nut, and other metering-device components may be sold separately.
Before ordering: Always verify part number CPL01420 against the equipment model and serial number.
Installation
Installation should be performed by a qualified HVAC technician using proper brazing, nitrogen-purging, evacuation, refrigerant-handling, and leak-testing procedures.
Protect nearby metering-device components, seals, and tubing from excessive heat during brazing. Confirm correct fitment and system compatibility before installation.
Frequently Asked Questions
What is the CPL01420 used for?
The CPL01420 is used to connect the field-installed 3/8" refrigerant liquid line to the piston or fixed-orifice metering-device assembly on select evaporator coils and air handlers.
What other names is this part called?
It may be called a piston tailpiece, piston tail pipe, liquid line tail pipe, coil stub tube, or liquid line connection tube.
Does the CPL01420 include the refrigerant piston?
No. This listing is for the liquid line stub tube only. The refrigerant piston, piston sleeve, connection nut, and other metering-device components may be sold separately.
What brands use this liquid line stub tube?
This style of tailpiece is used in select Oxbox, DiamondAir, Ameristar, Bosch, MRCOOL, and other HVAC equipment. Exact compatibility must be confirmed by model, serial number, and manufacturing revision.
Is CPL1420 the same as CPL01420?
CPL1420 may be used as a shortened reference for CPL01420. Verify the complete part number against the original equipment parts list before ordering.
Does this part require brazing?
Yes. It is designed for a brazed or sweat refrigerant-line installation and should be installed using proper nitrogen-purging, leak-testing, evacuation, and refrigerant-handling procedures.
