If you are diagnosing a pressure switch lockout or observing moisture tracks around the condensate collector box

Engineered for 05-12 series ignition controls

this specific part is designed for the Classic Bubbler series

This professional-grade GB-B replacement kit features EPDM (Ethylene Propylene Diene Monomer) construction

Hand-tighten the coaxial nut into the gas valve

Johnson Controls TBG16A-600R Siphon Loop If you are diagnosing aThe Johnson Controls TBG16A 600R Siphon Loop is a fundamental protecting component for steam pressure controls, specifically engineered for seamless integration with the P47 series steam pressure control. Designed to provide a reliable liquid seal, this 1 4" MPT FPT siphon loop functions as a cooling leg to protect internal sensing elements from high temperature live steam. By leveraging a precise mechanical design, the TBG16A 600R ensures that