Pentair 55025700 Underdrain Lateral Replacement Meteor Aboveground and Top Mount Pool/Spa Sand Filter<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>Underdrain lateral replacement</li><li>Fits Pentair Meteor 18， 20 and 22-inch aboveground pool/spa sand filters</li><li>Also fits Pentair Meteor 22-inch top mount pool/spa sand filters</li><li>Measures 3-1/4-inch length by 1-1/4-inch height by 1-1/4-inch width</li></ul></div><img src="http://ecx.images-amazon.com/images/I/31OVwlYE4RL.jpg" noproxy>