How to Measure for Your Septic Vent Filter
All Wolverine Brand vent filters can be easily installed on any PVC, ABS, Copper or Cast Iron vent pipes. To ensure a proper fit, measure your vent pipe's outside diameter and use the following tables to decide which size is right for you. The size you measure will actually be slightly larger than the filter size you select. This is due to the fact that PVC is measured by the inside diameter of the pipe.
MEASURING TABLE FOR PVC OR ABS VENT PIPES
| Vent Pipe Outer Diameter | Filter Size Needed in Inches | Filter Size Needed in DN* |
| 1 - 7/8" outside diameter (47.625 mm) | 1.5 inch | 40 mm |
| 2 - 5/16" outside diameter (58.7375 mm) | 2 inch | 50 mm |
| 3 - 7/16" outside diameter (87.3125 mm) | 3 inch | 80 mm |
| 4 - 7/16" outside diameter (112.7125 mm) | 4 inch | 100 mm |
| 6 7/8” outside diameter (174.625 mm) | 6 inch | 150 mm |
* Diamètre nominal
In order for a Wolverine Brand vent filter to fit properly on a copper or cast iron vent pipe, a no-hub adapter is required. To determine which size vent filter and adapter you will need, measure your copper or cast iron vent pipe's outside diameter and refer to the following table.
MEASURING TABLE FOR COPPER OR CAST IRON VENT PIPES
| Vent Pipe Outer Diameter | Adapter Needed in Inches | Adapter Needed in DM | Filter Size Needed in Inches | Filter Size Needed in DN |
| 1 - 3/4" through 2" diameter (44.45 mm - 50.8 mm) | 1.5 inch | 40 mm | 1.5 inch | 40 mm |
| 2 - 3/16" through 2 - 7/16" outside diameter (55.5625 mm - 61.912 mm) | 2 inch | 50 mm | 2 inch | 50 mm |
| 3 - 5/16" through 3 - 9/16" outside diameter (84.1375 mm - 90.4875 mm) | 3 inch | 80 mm | 3 inch | 80 mm |
| 4 - 5/16" through 4 - 9/16" outside diameter (109.5375 mm - 115.8875 mm) | 4 inch | 100 mm | 4 inch | 100 mm |
| 6 7/8” outside diameter (174.625 mm) | 6 inch | 150 mm | 5 inch | 150 mm |
All Inline Wolverine vent filters utilize no-hub adapters for installation regardless of vent pipe styles. For that reason, just measure the outside diameter of your PVC, ABS, Copper or Cast Iron vent pipe and refer to the following table to determine which size inline Wolverine installation kit you will need.
MEASURING TABLE FOR INLINE WOLVERINE FILTERS
| Vent Pipe Outer Diameter | Inline Wolverine Kit Needed in Inches | Inline Wolverine Kit in DN |
| 1 - 3/4" through 2" outside diameter (44.45 mm - 50.8 mm) | 1.5 inch | 40 mm |
| 2 - 3/16" through 2 - 7/16" outside diameter (55.5625 mm - 61.912 mm) | 2 inch | 50 mm |
| 3 - 5/16" through 3 - 9/16" outside diameter (84.1375 mm - 90.4875 mm) | 3 inch | 80 mm |
| 4 - 5/16" through 4 - 9/16" outside diameter (109.5375 mm - 115.8875 mm) | 4 inch | 100 mm |
