1-26"WC SPDT GAS PRESS. SWITCH

1-10# SPDT GAS PRESS. SWITCH

1/2-5# SPDT GAS PRESS. SWITCH

1/2-5.5"WC SPDT GAS # SWITCH

3/21"WC SPDT,GAS SW.AUTO

3-21"WC SPDT # SW.OPEN-FALL