1. Okpu agha na-anapụta mmiri na-egbuke egbuke ma na-adọrọ adọrọ, na-echebe isi na ntị, ma nwee oghere drainage na akụkụ elu nke okpu agha.
2. A ghaghị iji polyethylene dị ike mee shei ahụ, nke nwere ike inye ọrụ nkwụsịtụ dị mma.A na-eme rivets nke igwe anaghị agba nchara, nke nwere ike izere nchara mgbe ejiri ya na mmiri.
3. Okpu agha nwere oghere ventilashị 8 drainage;okpu agha nke nwere ọkwa nchebe dị elu, nhazi ergonomic na ụfụfụ ụfụfụ na-eme ka okpu agha na-eguzogide ọtụtụ mmetụta.
4. A na-ejikọta ihe niile na nchebe ntị, na nchebe ntị nwere oghere, nke nwere ike ichebe ntị na-enweghị emetụta ntị;
5. Ihe mkpuchi ụfụfụ nke e wuru nwere ike ịkwado isi ya nke ọma, na eriri olu na-eme ka ọ ghara ịgbanwe mgbe edozichara ya.Eriri ahụ dị ihe dịka 30cm n'ogologo ma nwee eriri ngwa ngwa, nke enwere ike ịhazi ya na nha.
6. Nhazi nke oghere mgbapu n'elu, mmiri a na-ahapụ agaghị eruba na ihu;arọ ahụ dị ihe dịka 420g, nke dị nnọọ mfe.