1. 6540-252, Nut
2. 6540-228, O-Ring
3. 6541-253, Injector with Escutcheon (Gray)
Note: Parts 1-3 Also Used As Air Bleeder Fitting
Inside The Filter Bucket on :
A. All 2006+ 880 / 780 Series Spas.
B. All 2004-2005 Sundance 880 / 850 / Portofino / Sweetwater Series Spas.
