Measuring Cup for Hot Tubs and SpasEssentials
The Essentials Measuring Cup is used to measure liquid or dry hot tub and spa chemicals. Eyeing or winging it with the amounts of balancers and sanitizer is the fast way to mess up your hot tub water balance. The Essentials Measuring Cup provides an easy way to measure out exact, correct amounts of dry or liquid hot tub chemicals to maintain water balance.
One side has measurements in thirds: 1/3 oz to 4 oz
The other side has measurements in quarters: 1/4 oz to 4 oz
The front of the cup has measurements in milliliters (ml)