Restrictor

6-Inch Hose | 1/4-Inch Reducer Coupling

8-Inch Hose | 1/4-Inch Reducing Coupler

6-Inch Hose | 1/8 Throttle Gear

8-Inch Hose | 1/8-Inch Reducing Coupler

8-Inch Hose | 3/8-Inch Throttle Gear