2 Pack Intex Hose Connector O-Ring for 1-1/4" Hose Connections Set of 2. Compatible with the following Intex filter pump models: Model 02 (500 gph). Model 108R (1,000 gph) Model 12/12R (700 and 1,000 gph) Model 603 (530 gph) Model 637 (800 and 1000 gph) Also compatible hose O-Ring for Intex, Sand N Sun, Wet Set and other pool filter pumps and hose fittings with connections for 1-1/4" diameter connection hoses. Genuine Intex replacment part number NF49. Sold in sets of 2 O-Rings.