This filter head screw set is designed to use with Hayward Perflex extended-cycle D.E. filter models EC50A, EC30, EC40, EC75A, I_PFPPTS, EC50C80X5S.

Features:

• Filter head screw replacement set
• Fits hayward perflex extended-cycle d.e. filter models ec50a, ec30, ec40, ec75a, i_pfppts, ec50c80x5s