This pilot (identical to T134120220) utilizes a 1/4" metal trim to withstand the rigors of pilot-operated steam regulators

ensuring a secure ground for the high-voltage spark output

providing superior safety during intermittent pilot sequences

Versatile Installation: Dual-compatible 3-inch connection supports both NPT and flange mounting configurations

Lochinvar & A.O. Smith 100109877 Pressure Switch 340155-7026 This pilot (identical to T134120220)The Lochinvar & A. O. Smith 100109877 Pressure Switch is a critical safety component designed for high efficiency commercial boilers and water heaters. This SPST pressure switch (Single Pole Single Throw) is engineered to monitor low gas pressure conditions, typically calibrated at a 5. 2" WC set point to ensure the system operates within safe manifold parameters. As an authentic OEM replacement part, it provides a direct fit for models including the