System Features Reduced Barrier 4-Way Bulkhead Beadlock Fitting kit. Kit includes: (2) straight heater fittings (2) 90° heater fittings a reduced barrier #6 straight fitting a reduced barrier #10 straight fitting a reduced barrier #6 90° fitting a reduced barrier #10 90° fitting and a tube of refrigerant oil. Vehicle Fitment warning California Proposition 65 arrow_drop_down WARNING: California proposition 65