Carrier 328963-753 2 Caps L99H008 while the mechanical spring return

while the mechanical spring return reliably closes or opens the device in under 15 seconds during power loss

Technicians benefit from zero-calibration airflow transducers and automated commissioning sequences

Featuring a 36-inch lead length

1W low-power profile reduces heat generation while ensuring positive core displacement

Durable Construction: Features a corrosion-resistant stainless steel power element and a large diaphragm for high stability and longevity

Carrier 328963-753 2 Caps L99H008 while the mechanical spring returnThe Carrier 328963 753 is a critical OEM replacement component, consisting of a pack of 2 hex caps specifically engineered for service valve protection. Featuring a 1. 18 inch hex size, these caps provide a precision fit for standard suction line service valves found in Carrier, Bryant, and Payne residential and commercial split systems. In the field, these are the primary defense against refrigerant migration and atmospheric contamination. The heavy