Branding stickers on the side of the PWC (jetski) will tell you the model of PWC, or refer to the purchase information.
In this example, the model is a Seadoo RXP-X RS 325
In this example, the model is a Yamaha Waverunner FX SVHO
Locate the HIN plate on the aft deck of the PWC (jetski), the last two digits are the year of manufacture.
In this example of a Seadoo HIN the year of build is 2020
In this example of a Yamaha HIN the build year is 2015
Figure out where you're going to be storing and lifting your jetski
NO HEIGHT RESTRICTIONS:
If it is lifted & stored on the foredeck, flybridge, aft deck or similar where there are no over head height restrictions then the Standard height kit is the one to choose.
LIFTING HEIGHT RESTRICTIONS (applicable to Seadoo only):
If the Seadoo is lifted / stored in a garage then you'll need to opt for the restricted height lifting kit. Where relevant, this will be shown as an option on the relevant product page.
Just click on the relevant manufacturers logo below to get started: