Product Review

Plastic Oddities MV34, Roof Vent Cap. Molded-in size steps accommodate either 3" or 4" roof vent pipe. Cap locks into position with 3 flat-end bolts, which will not penetrate the pipe, unlike pointed bolts. Helps prevent rain, leaves, debris, flying insects, and animals such as squirrels from entering vent pipe. To be used on roof vent pipes. Also works on portable toilet enclosure vent pipes and other exterior pipe that needs to be protected. Mushroom Vent Cap. Manufactured in the USA.