Freshwater pH/Alkalinity Down SAPHDT01 Jet face diameter is 74mm

Jet face diameter is 74mm and the hole size required is 54mm

Also used on other brand heaters

How it worksThe SPA FROG Fresh Mineral Water In-Line System is part of the hot tub's plumbing

Available Size Options:

Freshwater pH/Alkalinity Down SAPHDT01 Jet face diameter is 74mmFreshWater pH Alkalinity Down is designed to lower high pH and total alkalinity levels in your spa or hot tub water. When these levels are too high, water can become cloudy and uncomfortableleading to skin and eye irritation, reduced sanitiser effectiveness, and scale build up on spa surfaces and equipment. This fast dissolving formula helps restore water balance quickly and easily. Regular use keeps your spa water clear, gentle, and safe, while