Since the sealing integrity of the housing comes into play in doing so, Aquatica recommends that this modification be done only by qualified technician from and authorized Aquatica service center, also please note that this kit can also be factory installed as an option when ordering a housing.
19217: Conversion spring kit for deeper rating (425ft / 130m)
This deeper rating spring kit requires that the O-rings of the housing be removed and reinstalled.