How much does this cost to the nearest dollar?

OdorHog Metal Cap Slip On Vent Stack Pipe Filter 2 Black ABS, Removes Outdoor and Sewer Odor Problems
OdorHog is an activated charcoal vent stack filter for plastic or metal vent pipes that eliminates unpleasant outdoor odors from the roof vents Fast installation, no glue required, choose from 5 sizes. This Slip-on model fits on standard Schedule 40 PVC or ABS vent pipes with no tools or glue required. If you have metal, cast iron or non-standard PVC/ABS pipes, order the Clamp On model ASIN Proudly made in the USA, OdorHog is built strong with PVC plastic to withstand the sun and weather, our mushroom cap design keeps out water, leaves, and debris. OdorHog comes ready to use with activated carbon filter

Price is $78.00

Price: $77.95