GROCO 1-1/2" NPT Stainless Steel In-Line Ball Valve [IBV-1500-S]1 1 2" NPT #316 Stainless Steel In Line Ball Valve Features: 1 1 4" sizes and larger include a grease zerk fitting for lubrication (use only with the valve in the open position) or for draining Handle has square hole to accept standard ratchet (helps you to reach hard to reach valves and eases actuation of hard to operate valves) Thumb release locking mechanism assures the valve remains in the position selected 1000 WOG rated #316 SS body #304 SS