Our aluminum nipples are designed for splicing together our silicone coolant and turbo hoses. They are useful when connecting an elbow to a straight section, connecting two elbows, or connecting a reducer to an elbow. This 3" long splicing nipple fits inside any of our 57mm (2 1/4") ID silicone hoses.
Beads or ridges on the outside at each end are large enough to ensure good retention when used with our Lined Hose Clamps (Part No. 3613-2.75, sold separately) but not so aggressive as to cause cuts in the hose. Ridge configuration may vary from photo.