Tha dà chruth aig bhalbhaichean dealan-dè AWWA C504, ròn bog meadhan-loidhne agus ròn bog dùbailte annasach, mar as trice, bidh prìs ròn bog meadhan-loidhne nas saoire na an eccentric dùbailte, gu dearbh, mar as trice bidh seo air a dhèanamh a rèir riatanasan luchd-ceannach.Mar as trice is e an cuideam obrach airson AWWA C504 125psi, 150psi, 250psi, is e ìre cuideam ceangail flange CL125, CL150, CL250.