the Watts BKF55B Bowl Kit Filters & Integrals provides a direct OEM solution for preserving system integrity

making it suitable for high-temperature hydronic cycles and standard low-pressure steam environments

Technical performance should always be verified against the specific unit wiring diagram

the 0121627 is the official Watts lead-free replacement for the 5300A-1/2 and the older 0391600 models

if the vacuum is sufficient but the switch remains open

Johnson Controls P170AB-2 Pressure Control Els PW 17895 the Watts BKF55B Bowl KitThe Johnson Controls P170AB 2 is a heavy duty single pole single throw (SPST) low pressure control engineered for critical cycling and high pressure cutout applications. This industrial pressure switch operates with an open low action, featuring a versatile pressure range from 20" Hg to 100 psi. Designed for reliability in commercial refrigeration and HVAC systems, it handles non corrosive refrigerants including R 22, R 404A, and R 134a. The unit