MATERIAL 3D Printed PETG INSTALLATION Purchase includes two parts (threaded base, and Cap). 1. Unscrew existing metal foster cap and set aside. 2. Screw 3D printed base onto foster fitting ensuring that it is straight while tightening. It will seat flush against tube or bottle as shown in photos. NOTE: Threads were designed with some friction so that the base will not move once tightened down. 3. Cap can now be snapped into place over top of foster fitting. DISCLAIMER The purchase includes only the 3D printed parts. All other objects in photos are for reference only. USE this product at your own risk. EVOLVE 3D, LLC is not liable for damage to your property or person while using this product. WARRANTY We offer a limited lifetime warranty on our 3D printed parts.