Application: Outboard engine for Mercury speedboats Motorboats, etc. The o-ring does not compress and allow the filter to the housing, which then creates a leak. The O-rings are excellent quality. Draining of water or replacement of elements is determined by contamination level of fuel. Inspect bowl for water daily and service as necessary. Replace elements at least once a year or when a decrease of power is noticed. color: White material: metal To Drain Water 1. Loosen self-venting drain plug to drain water from bowl into a container. 2. Tighten drain. 3. Use primer bulb to fill filter with fuel. 4. Start engine and check there are no leaks. Category: Oil-water separator Filtration accuracy: 10 Thread Type / Size: Mercury Thread 11/16 inch 16 T.P.I Model number: S3213 Size: Height: 102mm OD/Width Max: 96mm OD/Width Min: 93mm ID/Depth Max: 81mm ID/Depth Min: 16mm Application: Mercury / outboard engine Interchangeable With: 35-60494-1 Package Contents: 5*Fuel Water Separator Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.