There are a number of differences between residential and commercial hot tubs and spas which cover cleaning systems, product features and guarantees. Most hot tubs and spas are designed for residential purposes to be used purely at your own property, however if you have a holiday home or property that may be used by others, it is key to opt for a hot tub that is designed for this purpose. 

In commercial hot tubs, the cleaning system included is often designed to provide more rigorous water filtration and disinfection as it may be used by different people more regularly than a standard, personal hot tub is. Commercial hot tubs also have larger drains to allow more efficient drainage when water must be changed between visitors and an in-line chlorinator so that only a specific amount of chlorine can be added by the owner. 

In terms of feature differences, commercial hot tubs also feature no-tamper control panels which prevent certain controls besides the jets from being changed. This is to ensure that health and safety is in place for anyone using the hot tub.