Ibhokisi lokuhlangana elingangeni manzi lochungechunge lwe-MG lingusayizi wama-400× 300× Amadivayisi angu-180 aklanyelwe ukuhlinzeka ngokuxhumeka okuphephile kukagesi ngaphansi kwezimo ezihlukahlukene zemvelo. Leli bhokisi lokuhlangana linomsebenzi ongangenisi amanzi, elingavikela izintambo zangaphakathi nezingxenye zikagesi kumswakama, amanzi emvula, noma olunye uketshezi.
Ibhokisi lokuhlangana elingangeni manzi lochungechunge lwe-MG lenziwe ngezinto ezisezingeni eliphakeme, ezinokuqina okuhle nokumelana nokugqwala. Ubukhulu bayo obuhlangene buyenza ifanelekele ukufakwa ezindaweni ezilinganiselwe, njengamabhodi okukhangisa angaphandle, amagaraji, izimboni, nezinye izindawo. Ngaphezu kwalokho, ibhokisi le-junction libuye libe nomsebenzi we-dustproof, ongavimbela ngokuphumelelayo uthuli nezinye izinhlayiya ukuthi zingangeni ngaphakathi, ukuqinisekisa ukuzinza nokuthembeka kokuxhumeka kukagesi.