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The Unicel C-9478 uses 4 oz
this cartridge is not compatible
The C-4301 is compatible with Nordic Hot Tubs models manufactured before July 1999 only
Length 10 3/4" Outer Diameter 7" Top Inner Diameter N/A Bottom Inner Diameter 2 11/16" Material 3 oz
featuring a 1-1/2-inch straight adapter for direct vacuum hose connection
AquaChek TruTest Spa Refill Test Strips, 50/Bottle | 522255 ADA Accessibility Equipment Parts The Unicel C-9478 uses 4Need a digital readout? Trutest provides digital results with the accuracy of a test strip. Simply dip a test strip, place it on the test strip reader, and results will be displayed for you. Trutest is ideal for customers who aren't comfortable distinguishing color. Includes 50 test strips Features and Benefits: 50 strips bottle Bromine 0 20 ppm Ph: 6. 2 8. 4 Total alkalinity: 0 240 ppm 3 IN 1 TEST STRIPS: Tests the most critical parameters for
