PVC air vent keeps martins cool. Our Heavy duty caps are awesome the way they are but these are even better. PVC elbow in the cap lets you cool those gourds down in the summer heat. UV inhibitors to prevent plastic breakdown make them last.
Venting your housing is essential to prevent babies jumping in a hot nest and other issues. Use your regular caps in the early spring and up until it gets hot. Once your babies hatch, switch the regular caps for these vented ones.
Fits Troyer, Supergourd and Excluder plastic gourds easily.
We recommend keeping the regular non vented caps on early in the season as early spring cold snaps can get mighty cold-so you won't need vents then.
Embossed with an attractive purple martin design these caps are designed for ergonomic handling. They feature an Easy Grip Cap on the outside rim of each cap has oversized "bumps" that go beyond the standard small "grip ridges" you customarily find. These bumps allow landlord with compromised dexterity to more easily grasp a cap when opening or closing a gourd.
MADE IN THE U.S.APrice is per PAIR (2).