... level adjustment and hold on; 3 Low noise, Anti-siphon; Toilet adjustable cistern fill valve S108 ≡Advantage≡1, Membrane design, good ... , float in one-piece, easy to adjust the water level, close instantaneously4, inside drain guard5. Pressure design, momentary shut off;6 ... , saving space.AUpdate Date:2011-3-8 8:06:09 Toilet adjustable cistern fill valve S108