Check the listing for details. VCA Random Flow Generator Kit 3/4inch 25mm Upgrade RedSea Reefer etc.. Condition: New, Made in United States. Listed at 65.84 USD. The Ultimate Reefer Return Line Upgrade Kit is the easiest way to upgrade your Red Sea Reefer back line. This kit contains all the parts you need to convert the return line in a way that no other kit can. The RSRFK075 includes the VCA 25mm to 3/4in Slip-Fit Loc-Line adapter, a LOC-Line Y fitting, some sections of the LOC line and two random flow generators. The kit is delivered completely assembled and can simply be placed on the end of the standard return nozzles - no adhesive tape, no tool, no glue required. It is so simple and can completely convert your return. For this repayment we use the same means of payment that you have used in the original transaction, unless something else has been expressly agreed with you; Under no circumstances will you be charged because of this repayment.