nice piece
real nice filler cap witrh a reasonable price too
Below are the available bulk discount rates for each individual item when you purchase a certain amount
 
            
        | Angle | 50° Degree | 
| Cap Type | Vented - Both Ways | 
| Hose Connection Size (Figure A) | 1-1/2"OD X (3" Long From Back Of Flange.) | 
| Vent Diameter See (Figure B) | 5/8" | 
| Mounting Flange Diameter See (Figure C) | 3-1/4" OD | 
| Height See (Figure D) | 3-3/4" | 
| Bolt Pattern | 4 on 2-3/4" Across | 
| Cap Hole Opening | 1-1/2" | 
| Material | 316 Marine Grade Stainless Steel. | 
| Cap Marking | Marked Gas. | 
| Includes | Cap Tether. | 
| RELATED PRODUCTS | SCROLL TO THE BOTTOM OF THIS PAGE | 

real nice filler cap witrh a reasonable price too
I used this and one of their 45 degree elbows. it worked great for my boat