Frigoboat Capri 35F compressor/condenser with a standard controller and manual compressor speed selection board. Because Danfoss/Secop BD35 compressors are multiple speed, Frigoboat allows you to choose the most efficient rpm to run your compressor at to get the job done. Run it fast to bring the box temperature down quickly; run it slower to maintain your box's set point. Save on energy! The Capri 35F is good for a refrigerator up to 7 cu ft or a freezer up to 4 cu ft. This is based on a box having good insulation, 3-4" for refrigerator boxes, 5-6" for freezer boxes.