This BK Series sheave offers consistent performance

Advanced Diagnostics: Features onboard LED status lights to assist contractors with rapid fault code identification

avoiding the "dead-leg" measurement errors common in large ducts

this part is the direct successor to the P129700 switch

Henry Technologies 2-023-054 Gasket 328140-751 This BK Series sheave offersThe Henry Technologies 2 023 054 Gasket is a critical sealing component engineered for high pressure refrigeration and HVAC systems. Designed as a direct OEM replacement part, this gasket provides a robust, leak free seal for valve bonnets, pressure vessels, and flange connections. Built to maintain refrigerant containment in demanding industrial environments, it is compatible with a wide range of HCFC and HFC refrigerants and their associated oils.