

Manufacturer pricing rules prevent us from advertising our discount — no account or email required to see it.
Secure Payments
Easy Returns
Expert Advice
Fast Shipping
The IMPERIAL 621-C is a 4-valve manifold gauge set designed for refrigerant service work on residential and commercial HVAC systems. It ships with four 5-foot hoses, giving technicians the connections needed to measure suction and discharge pressures, evacuate, and charge systems without swapping hoses. The set is rated to a maximum working pressure of 800 psi and features a burst pressure rating of 4000 psi, providing a substantial safety margin during high-side service on modern high-pressure refrigerants. Licensed HVAC technicians and refrigeration mechanics use this gauge set for routine system diagnostics, leak checks, and refrigerant recovery and recharge procedures.
This manifold gauge set is suited for residential split systems, heat pumps, light commercial packaged units, and refrigeration equipment where multiple service ports need to be accessed simultaneously. The 4-valve design allows independent control of each hose port, reducing refrigerant loss during connection and disconnection. It is a standard tool on service trucks handling a range of refrigerant types that fall within the pressure rating of the set.
Designed as an OEM-style service tool for use with refrigerant systems that operate within an 800 psi maximum working pressure range, typical of residential and light commercial HVAC and refrigeration equipment.
Installation and service should be performed by an EPA Section 608 certified HVAC technician. Shut down the system and relieve pressure from all hoses before connecting or disconnecting the manifold. Always verify that the refrigerant type in the system is compatible with the hose and seal materials before connecting. Follow applicable local codes and equipment manufacturer procedures when recovering, evacuating, or recharging refrigerant circuits.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
Add install kit to cart
—
Thanks for subscribing!
This email has been registered!