Product details:

X320049 - Master Spas 120/240V APG DEL Ozonator This unit has a standard 4 prong adapter, not a standard wall outlet plug This part is intended to be plugged into a spa board with matching receptacle. Part reads the following on the top label: P 308 120 / 240 V Part reads the following on the side label: DEL OZONE APG-U-E OZONE GENERATOR 120-240V / 50-90mA / 50-60Hz P/N 4-1930-04 Rev. B UL FILE# E145687 APG-U-XX Advanced Plasma Gap Dimensions:Width: 4.75 inches (12.065 cm)Length: 2.25 inches (5.715 cm)Weight: 1 lb. (454 g) Cord Length: 43 inches (109.22 cm) Includes 1 (one) X320055 - Master Spas Ozone Fitting Check Valve Master Spas Recommends this part to replace NLA X320050 and NLA X320057 This part is intended for Master Spa Tubs and may not work with other Tub Brands