Description
Supco BC1 Capillary Tube — 0.031″ ID x 10 Ft
The Supco BC1 is a precision-engineered capillary tube designed for refrigerant flow metering in residential and light commercial refrigeration and air conditioning systems. With a 0.031-inch inner diameter and a generous 10-foot length, this capillary tube provides technicians with the flexibility to cut to the exact length required for a wide variety of service and replacement applications.
What Is a Capillary Tube?
Capillary tubes serve as fixed-orifice refrigerant metering devices in many refrigeration systems. By restricting refrigerant flow through a small-diameter tube, they create the pressure drop needed to regulate the flow of refrigerant from the high-pressure side to the low-pressure side of the system. They are commonly found in window air conditioners, refrigerators, freezers, dehumidifiers, and small split systems.
Key Features
- Inner Diameter: 0.031 inches for precise refrigerant flow restriction
- Length: 10 feet — allows field trimming to exact system requirements
- Designed for use as a refrigerant metering device in HVAC and refrigeration equipment
- Compatible with a wide range of refrigerant types used in residential and light commercial systems
- Manufactured by Supco, a trusted name in HVAC/R replacement parts and components
Typical Applications
- Window and room air conditioners
- Household refrigerators and freezers
- Dehumidifiers
- Small split-system air conditioners
- Light commercial refrigeration equipment
Why Choose Supco?
Supco has been a leading supplier of HVAC/R replacement components for decades, offering reliable, quality-tested parts that meet the demands of professional technicians. The BC1 capillary tube is a go-to solution for metering tube replacement and custom fabrication in the field.







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