Fits Weber 42mm DCNF Carburetor Spacer Riser Phenolic Insulator Riser 42 mm 1/2"
This is a 1/2" phenolic carb insulator that fits the 42mm DCNF Weber and are sold individually to help prevent carburetor boiling or heat soak, the cooler it is the more power it makes. Any questions please email or call 608-637-7167