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Pentair Rainbow 300 Automatic Chlorinator Replacement Parts Diagram

Interactive parts diagram

17 parts · 1 with cheaper aftermarket options. Tap a number on the diagram, or search by part number.

 – exploded view with numbered parts

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    • Not sold online Pentair check valve, old style (optional) R172020Call us and we'll get it for you.
    • Not sold online Pentair saddle clamp gasket (2 needed) R172033ZCall us and we'll get it for you.
    • Not sold online Pentair spa chamber, model 302 only R172037Call us and we'll get it for you.
    • Not sold online Pentair cap wrench (optional) R172052Call us and we'll get it for you.
    • Not sold online Pentair silicone lubricant, 3/4 oz. R172036ZCall us and we'll get it for you.
    • Not sold online Pentair 1/4" corrosion resistant check valve (optional) R172323Call us and we'll get it for you.
    • Not sold online Pentair standpipe adapter, bromine R172061ZBCall us and we'll get it for you.
    • Not sold online Pentair compression nut only R18706ZCall us and we'll get it for you.

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Also fits your Pentair Rainbow 300 Automatic Chlorinator

Not shown on the diagram, but made for this pump.

Fit guide

Which Rainbow 300 feeder part do you need?

This list covers Rainbow models 300, 302 (spa / hot tub), 300-19 and 300-29. Part numbers come from Pentair's Rainbow automatic feeder replacement parts list.

Lid & lid O-ring

3 in. threaded cap item 1, white
R172008W
Cap O-ring item 2
R172009Z Aladdin O-283
Cap wrench item 17, optional
R172052

Parts bag R172064

Pentair's R172064 parts bag for the 300, 302, 300-19 and 300-29 holds:

Tube fitting with nut item 9, 2 pcs
R172032Z
Gasket item 10, 2 pcs
R172033Z
Saddle clamp item 11, 2 pcs
R172034Z
Control valve item 18
R172060Z
Silicone lubricant item 19
R172036Z
Check valve / elbow item 20
R172061Z

Check valves

Combination check valve / elbow item 20, standard
R172061Z
Flow indicator with check valve item 21, optional
R172080Z
1-1/2 in.–2 in. corrosion resistant item 23, optional
R172288
1/4 in. corrosion resistant item 24, optional
R172323
Old style item 3, optional
R172020

Model 300 or 302?

Model 300 order no. R171016
Automatic feeder
Model 302 order no. R171026
Spa / hot tub feeder, adds spa chamber R172037 (item 14)
Bromine item 25
Standpipe adapter R172061ZB