Hayward SX200Z4 O-ring Replacement for Select Hayward Filter and Valve<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>O-ring replacement</li><li>Fits hayward pro-grid， micro-clear vertical grid d.e. filter and pro plus series models s311sx， s311sxv， s360sx</li><li>Also fits pro series s210s， s244s， s310s and sand filter series s240</li><li>Also compatible with Hayward Super Star-Clear Cartridge filter series C2000， C3000， C4000， C5000 and Multiport valve SP0410X， SP0740DE， SP1078</li><li>Weighs 3.6-pound</li></ul></div><img src="http://ecx.images-amazon.com/images/I/212xdGCM6YL.jpg" noproxy>