Pat Plumbing, Heating and Air - This is a corroded washing machine valve with a rubber washer hose. The corrosion on the shut off was an obvious water leak. The older rubber
Watts Intelliflow A2C-SC 1/2 Washing Machine Smart Water Shutoff Valve with Leak Sensor and Real-time Text and Email Alert Capability, Without Wall Box : Amazon.ca: Home
washing machine - How can I shut off these water valves that won't turn? - Home Improvement Stack Exchange
How Do I Fix a Leaking Washing Machine? | Living by HomeServe
Replacement Of Shut Off Valves For Washing Machine - Mister Plumber
New washing machine shut off valves (and more) – run | sew | read