Both Sizes in stock 3/8" and 1/2" same price
Fermentech Auto siphon Clamp clamps easily to buckets and carboys, holding your Auto-Siphon securely above the sediment. Snap on, slide down, snap off.
Great to have holds the siphon where you want hands free
I do have the (3/8)regular auto siphon in stock for $15 and the (1/2) large one too for $18 in other ads