LaMotte Insta-Test Pro 400 (100 Strips) - 2978 fitting-connection_Male x Female 4 M and has a

4 M and has a skid resistant surface

Filter Model S8D110

This is a PVC Schedule 80 90 Degree Elbow with Slip x Slip fitting connections that measure 2-1/2 Inch

The outside tube is formed slightly out of round and the inside tube is equally out of round which creates the friction for the lock

LaMotte Insta-Test Pro 400 (100 Strips) - 2978 fitting-connection_Male x Female 4 M and has aThis is an Insta Test Strips Pro 400 Plus which includes 100 test strips and tests for Free Chlorine, Bromine, pH and Alkalinity. These test strips are designed specifically for on site use by service pros. The instructions are in English, Spanish and French. The LaMotte Insta Test strips are an unbeatable test system. They are accurate, reliable and easy to read. New one dip formula; read instantly! TESTS: Free Chlorine 0 to 10 ppm, Bromine 0 to 20