Enhanced Reliability: Constructed with high-grade materials to withstand frequent thermal cycling in water heater pilot assemblies

and metallic debris that can lead to metering device clogging or compressor failure

This SPST normally closed switch is compatible with 24V

it meets the EIA-456-A test standards

the "R" suffix indicates a revised or updated part number

Watts 0841005 SVA Vent Enhanced Reliability: Constructed with high-gradeThe Watts 0841005 SVA Vent is a professional grade 1 8" angle vent engineered for high performance air removal in one pipe steam heating systems. As a technical replacement for standard non vacuum adjustable float type steam air vents, this unit features a heavy duty brass body and an internal brass float designed to withstand the rigors of commercial and residential steam mains. This adjustable steam air vent allows for precise proportional venting,