VEVOR Inflatable Hot Tub, 4 to 6 Person Capacity, 81.9 x 26in Round Portable Outdoor Spa, with 130 Soothing Jets, Headrest, LED Light, Cover, Multi-function Control Panel, PVC Outdoor Hot Tub, Grey

When the temperature is below 4 degrees Celsius, the bathtub must be drained, cleaned, and stored, otherwise there is a risk of freezing and damaging the chassis.

No,it doesn't come with chemicals.

This is 110V.This product can use a breaker of about 15A, and the plug of the product comes with a GFCI leakage protector.

Sorry, we do not have a salt water version.