HHK2 - MalcoEdge® - HHK2 Turboflow™ Vacuum Kit

That's the MalcoEdge HHK2 TurboFlow Vacuum Kit – Dual, an HVAC/refrigeration evacuation kit for trade pros. Key specs:

• Two 60" TurboFlow hoses, 3/8" ID (vs standard 1/4"), built to SAE J2196 standards, 800 psi working pressure, 4000 psi burst rating
• Dual-hose setup enables simultaneous high/low side access for faster evacuation on larger residential and light commercial systems
• Includes CRT2Y (high-flow core removal tool with integrated sight glass + dual valves) and CRT1 (compact, for tight spaces)
• 3/8" high-flow Y branch connects both hoses to the vacuum pump, smoother flow than T-fittings
• Comes packed in a Veto Pro Pac Hose Hauler bag

It's the step-up sibling to the HHK1 (single-hose version, same specs but one hose instead of two) — so HHK1 is for standard residential jobs, HHK2 is for bigger residential/light commercial where you want both sides pulling vacuum at once.