Silicone Hose, 4 1/2 x 3 1/2 inch ID Straight Reducer Color:Red 5mm wall thickness (125mm /

5mm wall thickness (125mm / 5" and 100mm / 3 15/16" OD) and a working pressure rating over 12 psi (64 psi burst pressure)

15" (80mm) OD at the other

It is designed specifically for connecting 3 3/4" (95mm) OD metal intake pipes

1x HJ19 Aluminum Hose Joiner

This cap features the same water- and coolant-compatible silicone rubber formulation as our silicone coolant hoses

Silicone Hose, 4 1/2 x 3 1/2 inch ID Straight Reducer Color:Red 5mm wall thickness (125mm /Our silicone hose is built for endurance and performance in custom coolant and intake plumbing applications. Each hose is hand crafted from multiple layers of silicone rubber with polyester reinforcing fabric between the layers. The silicone rubber remains flexible and tough from 50 C to +180 C ( 76 F to 356 F). The outside has a smooth, shiny, "wipe down" finish that is easy to keep clean. These straight reducer hoses are approximately 5 inches long