CMP manufactures two jet internal and body systems, Pro-Loc & Typhoon Advanced These two systems are not interchangeable. Never try to force a jet to fit if you are unsure of the fit
Typhoon Advanced System
Black or Gray Snap-Clip Ring in Jet Body (Except 200 Series)
NOO-ring on Jet Internal Shaft (It is possible the o-ring could be broken or removed. Always check other indicators to confirm.)
![CMP Typhoon 300 Jet Internal [3-1/4" FD] [Directional] [Crown][Dark Gray/SS] (23436-012-700) Spa Parts: Spa Jets (CMP Typhoon 300 Jets) 55-605-4020_xl](http://bathparts.com/cdn/shop/products/55-605-4020_xl.jpg?v=1769976120&width=700)
![CMP Typhoon 300 Jet Internal [3-1/4" FD] [Directional] [Crown][Dark Gray/SS] (23436-012-700) Spa Parts: Spa Jets (CMP Typhoon 300 Jets) 55-605-4020_xl](http://bathparts.com/cdn/shop/products/55-605-4020_xl_1024x.jpg?v=1769976120)