4 Cv rating and calibrated 4-12 psi spring allow for accurate modulation and improved system energy efficiency

Johnson Controls V-9502-19 Positioner Spring for use with V-3000 Actuated Valves with 5/16" Stroke for 8 PSI Span

The timer utilizes trippers on the calendar dial

If you are operating on propane

Both offer the same ASME rated protection levels and 730

Bradford White 415-42543-04 Kit R-22 4 Cv rating and calibratedThe Bradford White 415 42543 04 Kit is a professional grade 208V 5000W heating element designed for high demand residential and commercial water heating applications. This OEM water heater part features an incoloy sheath construction, providing superior resistance to scale buildup and corrosion in harsh water conditions compared to standard copper elements. As a screw in heating element, it ensures a secure, leak free fit within the tank's 1 inch NPSH