Hayward Perflex EC50C Flex Tube Nest (ECX1037) checkvalves 3-3/4 inch format with 2-3/8

3-3/4 inch format with 2-3/8 inch hole size

A more system-matched testing product can help homeowners feel more confident that they are checking the right part of the water-care routine

Helps preserve configuration-specific switching logic

4 inch face diameter

using the intended product helps support proper operation

Hayward Perflex EC50C Flex Tube Nest (ECX1037) checkvalves 3-3/4 inch format with 2-3/8The Hayward Perflex flex tube nest is designed for compatible EC50C DE filter applications where the internal filter tube assembly needs replacement. A flex tube nest is useful because it supports DE filtration by providing the internal structure that traps fine particles and helps maintain cleaner pool water. This replacement is especially useful when the original tube nest is torn, damaged, clogged beyond cleaning, or no longer filtering correctly.