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For complex retrofits
Its robust diaphragm design is specifically calibrated for 90+ single-stage furnace models
allowing versatility across different HVAC voltage requirements
By replacing a carbon-fouled or cracked ignitor with this genuine York component
Sensus 143-16-508-00 Throat Block Els PW 17895 For complex retrofitsThe Sensus 143 16 508 00 Throat Block is an essential internal component designed specifically for industrial gas pressure regulation systems. This version is the throat block without O ring seal, engineered for integration into Sensus 243 and Model 143 80 service regulators. Built to maintain structural integrity under high flow conditions, this acetal or cast aluminum insert ensures proper stem guide alignment and support within the lower diaphragm