This grey Waterway air injection jet is used in many spa models. This air jet comes complete with an o-ring and nut, plus three adaptors of different shapes (use the one which works best for your spa - you only need one adaptor per jet).

Connect this jet to a manifold using 3/8" flexible pipe.

Dimensions
Diameter of the hole to drill in the spa : 15 mm
Air pipe connection : 3/8" male (10 mm external diameter)
Diameter of the jet face : 35 mm
Length (jet only) : 36 mm
Length (jet + elbow connector) : 50mm

Waterway part numbers
Grey : 670-2607
White : 670-2600