I-Valve ye-Brass Spring yokuHlola ene-Filter yenziwe ngobhedu olubunjiweyo, olukwabizwa ngokuba yi-valve engabuyiyo, eyenzelwe ukulawula ukuphuma kwenkqubo yokulawula ulwelo, i-fluid ilawulwa yi-disc kwaye igeleza kwicala elinye, isetyenziselwa ngokubanzi i-plumbing, ukupompa, kunye nemibhobho.