Surge Stainless Steel Vacuum Saver Teat Cup (Shell).
Often advertised as "For Goats" this small bore shell was designed to minimize vacuum requirement, when Babson came out with the "Siphon" style milkers.
It works for cows or goats and fits our M221 narrow bore inflations. A must have if using an undersized (less than 8cfm) portable vacuum pump.
