* Make sure that this fits by entering your model number.. * The Fluval 307/407 Motor Seal Ring is suitable for 107, 207, 307, 407 Range of Canister Filters. * Genuine Fluval spare. * This Bundle includes TWO Replacement 307/407 Motor Seal Ring Gaskets and ONE Inland Seas Super Lube Silicone Lube, 1cc.. * Gaskets should be lubricated every time you change the Gasket, but also every time you open up the filter. Keeping the Gasket from getting dry will prevent leaks.