Fox Float X/DHX 2022+ Bleed Fitting (Fox 803-01-691 Equivalent)
 
This is a WSS brand, model STBP1115 bleed fitting. It has the same threads on both ends as the OEM Fox 803-01-691 fitting. 
 
This bleed fitting threads onto the MTB Hydraulics bleed syringe like a Fox bleed fitting. 
 
This fitting is used to bleed Fox Float X and DHX shocks 2022 model year onward, 2024 Float X2 (trunnion eyelet), etc. 
 
The easiest way to identify if a Fox shock uses this fitting is by the torx head bleed screws. If the bleed screw is allen head, then it uses the 803-00-463 fitting.