Replacement o-ring set for X4/X4D probes. Includes two o-rings. The thinner o-ring (size 031) is for the probe body, the thicker (size 130) goes inside the probe cap.
FREE SHIPPING ON ALL ORDERS OVER $125 USE CODE "FREESHIP125" AT CHECKOUT - ALL ORDERS PLACED 8/18-8/20 WILL BE SHIPPED 8/21