HOW TO SIZE

Taps™ Odor Control Manhole Inserts

Measure each and every manhole for which you are ordering inserts, unless you are absolutely sure of dimensions. Your order will be produced to your supplied dimensions. Errors in instructions received from you may result in unusable inserts for you because they are non-returnable. --If you have any questions concerning the insert dimensions please call: (800) 442-7575.

The drawing below illustrates the required measurements

1. Manhole Frame Diameter (flat bearing surface)
2. Inside Frame Diameter (clear opening)
3. Drop Ring Diameter
4. Drop Ring Depth (from cover underside, outside edge)