Boom air seal

An agricultural application implement comprising:

• a frame including at least one boom capable of being folded for transportation, the at least one boom including a series of boom tube segments with at least two boom tube segments being connected by a joint, the joint comprising:
• a seal and a socket;
• wherein the seal defines a compressible seal body and includes a first seal section and a second seal section, the second seal section having a collar portion and a rim portion;
• wherein the socket defines a rigid socket body and includes a first socket section and a second socket section;
• wherein the first seal section and second socket section are configured so that the first seal section and second socket section are engaged when the boom is extended during use and separated when the boom is folded for transportation;
• and wherein the least two boom tube segments include:
• a first boom tube segment with the socket mounted to a first boom tube segment;
• a second boom tube segment with the seal mounted to a second boom tube segment, the seal and socket being selectively engageable to create a substantially airtight joint between the first boom tube segment and the second boom tube segment when the boom is extended during use.