Generic Strut Bladder for all North Wings. Please refer to the size chart to find the correct bladder size for your wing model, year and size. *2023 Nova Light Wind has a different valve system, therefore is only compatible with specific 2023 Nova Light Wind Strut Bladder 85015.2300682021/2022 Nova has two HyperFlow hoses, therefore is only compatible with specific Nova LE Bladder.2021 85006.210074 / 2022 85015.220074or Nova Strut Bladder 2021 85006.210066 / 2022 85015.220066