Jed Pool tools Inc 00-230 Test Refills for 481<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>Easy to use</li><li>High quality product</li><li>Manufactured in china</li><li>Test refills</li><li>1/2-ounce Chlorine test solution and 1/2-ounce pH test solution</li><li>For use with Standard Test Kit #481</li></ul></div><img src="http://ecx.images-amazon.com/images/I/517Jr0-773L.jpg" noproxy>