See i order a spp6 and they send me the smaller spp5 theres a size difference between these two im a proffesional ac technician see for a bigge type of compressor i would need the extra 200% torque the spp6 provides i really hope there not doing this to a bunch of people that wont know the difference anyways. I will never buy here again i only give this internet companies one chance to get it right these guys obiously are not doing the right thing all to save a few bucks.. Be careful with these guys