Your new PRP Double head drain will allow you to utilize both oil and water galleries in the back on your Nissan RB20, 25, 26 Cylinder head simultaneously, also allowing the option of blocking while not in use, these instructions should make use of this product a breeze.
*Screwdriver / punch / lever bar *Hammer
*M7 Drill bit
*M8 x 1.25 Tap
*4mm, 6mm and 12mm Alley keys