Yellow Jacket 19030 O-ring 3/8 Inch 10-pack

Product Description

The YELLOW JACKET 19030 is a 3/8 inch O-ring sold in a 10-pack, designed for use in HVAC and refrigeration service connections. Made from rubber and manufactured in the USA, these O-rings provide reliable seals at refrigerant fittings, service valves, and manifold gauge connections. HVAC technicians and refrigeration service pros keep these on hand to replace worn or damaged seals during system maintenance and repair. Having a 10-pack available on the job reduces downtime when a seal fails during a service call.

These O-rings are suited for residential and light commercial HVAC and refrigeration applications. They are commonly used when servicing refrigerant lines, charging ports, and flare or mechanical fittings that require a 3/8 inch O-ring seal. Techs typically install them during system evacuation, refrigerant recovery, and recharge procedures where a proper seal is critical to prevent refrigerant loss.

Key Features

• 3/8 inch O-ring size for refrigerant service fittings and valve connections
• 10-pack quantity reduces the need for multiple service trips
• Rubber construction for flexible, compression-resistant sealing
• Made in the USA
• Compact package dimensions of 8.27 inches x 7.52 inches x 0.24 inches

Compatibility

Designed as an OEM-style replacement O-ring for 3/8 inch refrigerant service fittings commonly found in residential and commercial HVAC and refrigeration systems.

Installation Notes

Installation is performed by licensed HVAC or refrigeration technicians. Always recover refrigerant and relieve system pressure before replacing O-rings at any service port or valve connection. Inspect the seating surface for nicks or debris before installing a new O-ring to ensure a proper seal. Follow applicable EPA Section 608 requirements when handling refrigerants during service.