Amashejuli okufakwayo asukela kuma-5s kuya kuma-xxs.Fittings ngaphezulu kwe-NPS12, ekhiqizwa yindawo eshisa ingxenye yesitoko esifanelekile kunoma yiliphi izinga lokushisa lokwakha, lizoncishiswa, noma lilinganiswe futhi lishaye phansi. Futhi lokhu kufakwa ku-inlcudus elbow, Tee, ama-reducers, okuqukethwe yikhabhoni kufanele kube ngu-0,26%. I-NPS12 ngaphansi kwesidingo sokushisa esiphethwe ngaphansi kwale nqubo yokwakha.