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4" PVC Couplers & Reducers

Spectre’s 4 inch PVC couplers and reducers help you to easily connect air intake components and tubes together. Our PVC couplers and reducers come in red, blue and black so you can match the color of your connections to your vehicle. PVC couplers are not suitable to be installed on pressurized components such as turbocharger or supercharger outlets.

Available Products
  • 9741
    9741
    COUPLER/REDUCER; 4"-3.5" PVC BLACK
  • 9742
    9742
    COUPLER/REDUCER; 4"-3.5" PVC RED
  • 9746
    9746
    COUPLER/REDUCER; 4"-3.5" PVC BLUE
  • 9761
    9761
    COUPLER/REDUCER; 4"-3" PVC BLACK
  • 9762
    9762
    COUPLER/REDUCER; 4"-3" PVC RED
  • 9766
    9766
    COUPLER/REDUCER; 4"-3" PVC BLUE
  • 9771
    9771
    COUPLER 4" PVC BLACK
  • 9772
    9772
    COUPLER; 4" PVC RED
  • 9776
    9776
    COUPLER; 4" PVC BLUE
  • 9781
    9781
    COUPLER; 4" ELBOW 90 DEGREE PVC BLACK
  • 9791
    9791
    COUPLER; OVAL 4" ROUND PVC BLACK - FORD 4.6L