Pentair Micro Cyclone Twist-Lock Hot Tub Jet Internal Insert. Features a directional  nozzle with a textured gray 5-point scalloped face.
3-1/4" Face diameter
3-5/8" Overall length
Product notes: Non-threaded snap-in style. To remove spa jet, rotate counter-clockwise (about 1/4 turn until it stops) then apply additional turning force to unlock. To install spa jet, rotate clockwise while applying inward pressure until it locks. Mates with # BX9780 Pentair Twist-Lock Jet Housing.
