Kit consists of three elements visible on the top of the picture. The lower part of the photo is how it is assembled.
for mounting needs to pierce the wall of the tank with 9.5 mm, the hole should then be thoroughly drooled
for a perfect seal we recommend to apply a fuel-resistant sealant to the thread .
Please When you order please specify : 16mm diameter (small bottles) or 20 mm diameter (strongher for bigger bottles).