Hayward Perflex Filter Tube Sheet Nut, SPX1500Y1
No.18 Image SPX1500Y1 Tube Sheet Nut Used on Hayward Perflex D.E. Filters. Fits models EC65 and EC75. Use 16 Nuts per filter, to secure the tube sheets together. Mates with Tube Sheet Screw, SPX1500N1, sold separately. Also available is a Screw and Nut set, see part number SPX1500NYA.