Manifold Gauge Series

Our Manifold Gauge Series covers the charging, vacuum evacuation, and pressure testing needs of air conditioning and refrigeration systems. The line runs from classic brass gauge sets and aluminum 2-valve and 4-valve gauge sets to digital ball valve gauge sets, digital manifolds, and dedicated R744 gauge sets, so users can choose by the equipment being serviced, working habits, and budget. The applicable refrigerants are determined by the gauge head fitted, and most models support gauge head replacement, so the same valve body paired with different gauge heads can serve systems using different refrigerants.

Brass Classic Series: The valve body is made of brass, offering strong corrosion and pressure resistance and withstanding repeated operation and pressure shocks in refrigerant systems over the long term. The classic two-valve structure is intuitive to operate and comes with PG-series pressure gauge heads and a protective sheath. Some models support gauge head replacement, making the series a dependable choice for professional repair shops that value durability and stability.

Aluminum 2-Valve Series: The aluminum valve body is lighter than brass models, suiting technicians who often carry tools to job sites. It is available in several valve body colors, including white, dark blue, and black (the valve body color is replaceable), and in a range of protective sheath styles, including the Moon-cake Sheath, vintage One-piece Sheath, Square Black-Yellow Sheath, and FT Sheath. The gauge heads are replaceable, and the no-flutter function is available depending on the gauge head chosen. The ball valve models in this series have a short valve travel for crisper operation.

Aluminum 4-Valve Series: The four-handwheel, four-port structure can connect high-pressure, low-pressure, vacuum, and refrigerant supply lines at the same time, so vacuum evacuation, charging, and recovery do not require repeated hose changes, which suits complete, multi-task repair workflows. It is offered with three protective sheath styles: Moon-cake, Square Black-Yellow, and FT.

Digital Ball Valve Series: This series combines a ball valve structure with digital electronic gauge heads, showing pressure as a numerical readout that is easier to read than a pointer gauge. It is available in single-gauge and dual-gauge manifold versions, with an aluminum valve body and FT Sheath, and suits everyday testing of residential, commercial, and automotive A/C.

The Digital Manifold Series features a durable TPE+PA protective cover and a flexible non-slip silicone design for a comfortable grip. It delivers high-precision data that is stable and accurate, and its large color screen with graphic display makes measurement results easy to evaluate.

R744 Series: Designed specifically for R744 (CO₂) refrigerant systems, it pairs a black aluminum valve body with a dedicated PG-R744 gauge head and a dedicated sheath, suiting technicians and repair shops servicing new automotive A/C systems that use CO₂ refrigerant.

The whole series is widely used at automotive A/C repair shops and for charging, vacuum evacuation, testing, and maintenance of residential and commercial refrigeration equipment.