Mazzei Injector #1584:

• Black, Kynar
• 1 1/2" MPT
• Without built-in Check Valve
• Without O-ring (use Teflon tape)
• DEL Ozone Part Number 7-0740
  
• Was used in DEL Ozone Injector Manifolds IU-211 (previously IU-201 and IU-206)
• Was used with DEL Ozone Eclipse Inground Pool Ozonators (see Note 1)
• Was used with DEL Ozone Big Dipper Above-Ground Pool Ozonator (see Note 2)

Note 1:  Typically the #1584 injector cannot be replaced in the IU-211 or IU-216 injector.  So if you need a new injector, you probably need the whole bypass (again, IU-211).

Note 2:  In the case of the Big Dipper application, unlike the IU-211 and IU-216, the #1584 injector can be replaced (there is no bypass manifold).