SPEEDAIRE 114X31 Service Indicator Assembly,Mechanical 114X31
Service Indicator Assembly, Compatible with Grainger Part Number 4ZL18, 4ZL19, 4ZL20, 4ZL21, 4ZL22, 4ZL23, 4ZL24, 4ZL25, 4ZL26, 4ZL31, 4ZL32, 4ZL33, 4ZL34, 4ZL35, 4ZL36, 4ZL43, 4ZL44, 4ZL45, 4ZL46, 4ZL53, 4ZL54, 4ZL55, Compatible with Brand Speedaire.