System1 Designs 4.0" to 3.5" - 90 Degree Elbow Reducer Hose (4416}

4" to 3.5" 90 Degree Silicone Reducer Coupler by System1 Designs System1 Designs couplers are targeted towards a large range of customers. From the DIY performance enthusiast to production fabricators. We provide one of the best couplers on the market without breaking the bank! All couplers are made of high quality silicone, 3-ply reinforced, withstands heat up to 450°, and have a burst rate of 50psi! Our couplers are not to be used with Oil or Fuel, however it can be used with water or anti-freeze with no issues! System1 Designs couplers meet or exceed all performance and physical standards of SAE J20 R1, SAR J20 RA H.T. Class A, TMC RP303B GI and GII, Mil Spec A-A-52426. Features High Quality 3-Ply Reinforced Silicone Withstands Up to 450° Burst Rate of 50psi Meets or Exceeds SAE J20 R1, SAR J20 RA H.T. Class A, TMC RP303B GI and GII, Mil Spec A-A-52426 Please Note: Our couplers are not to be used with Oil or Fuel, however it can be used with water or anti-freeze with no issues!