Johnson Controls T-800-1618 Well Els PW 17895 The Lennox 63W39 Pressure Switch

The Lennox 63W39 Pressure Switch is the direct replacement for 56M23 and the 101021-13 assembly

making it a standard choice for commercial thermostat protection where long-term durability and climate control security are localized priorities

always verify if your application requires a separate start capacitor for the full start-assist circuit

Using it for hydronic water pressure exceeding its range will result in component failure

you would typically look for the "S" (ODF) suffix in the Parker LLD series

Johnson Controls T-800-1618 Well Els PW 17895 The Lennox 63W39 Pressure SwitchWell, Brass, 9 1 2" Length This item does not qualify for free shipping.