Pentair 27001-0120 Half Union Assembly Replacement PLM Pool and Spa Cartridge Filter<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>Half union assembly replacement</li><li>Fits Pentair Sta-Rite PLM pool and spa cartridge filters</li><li>Includes o-ring and reducer bushing</li><li>Measures 10-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/31fG3a97R6L.jpg" noproxy>