Hunter Sprinkler HQ3RC 1-Piece Quick Coupler 3/4-Inch NPT Inlet Thread Non-Locking with 2 Slots, Yellow With heavy-duty red brass and stainless steel construction, all HQs feature our Tuff Top spring-loaded locking or non-locking covers The unique Wing Thing models feature anti-rotation stabilizers for added vandal-resistance and operational durability One-piece and two-piece models are available