Just in case there’s still confusion, the Taylor K2006C works for “both” types of pools. “Both” is in quotes because a salt water pool is a chlorine pool. The only difference is the way chlorine gets added. With a salt water pool, chlorine is automatically generated by the salt water chlorine generator. With a non-salt water pool, chlorine is added manually. The tests in the Taylor kit include chlorine, pH, alkalinity, calcium hardness, CYA, and maybe others I’m forgetting. The K1766 is a salt water test to test the level of salt in your water, as the SWCG needs a certain amount to generate chlorine. Most, if not all, SWCGs have a sensor that reads the salt content of the water, but they’re not quite as accurate as the Taylor test.
Hope that helps!