Catch box designed to be used with the Colorado Bee Vac vacuum top sold separately as a combo which includes a catch box. Purchasing additional catch boxes individually allows you to pick up multiple swarms or large cut out removals without combining the bees during the day. Having extra catch boxes on hand allow you to do really big extractions/removals without packing the boxes tight with bees. Especially important to give the bees some extra breathing room on those hot 90-100 degree days. With the Colorado Bee Vac changing from one catch box to the next is simply a matter of moving the vacuum top and vacuum hose from one catch box to the next. Transportation is as easy as picking up a small suit case. Designed with the large ventilation area using #8 hard wire screen to help keep the bees cool during transportation. Easy to empty by setting the catch box on top of your prepared ten frame hive body and pulling the metal slide bottom. After the bees have migrated down into your hive body remove the catch box and slide the galvanized bottom back into place and you are ready to go again. (See separate listing for the Colorado Bee Vac to purchase the vacuum top that goes with this “catch box.”)