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Pentair Rainbow 320 Automatic Chlorinator Replacement Parts Diagram

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

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    • Not sold online Pentair cap wrench (optional) R172052Call us and we'll get it for you.
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    • Not sold online Pentair lock screw R01052Call us and we'll get it for you.
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    • Not sold online Pentair check valve R172248ZCall us and we'll get it for you.
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    • Not sold online Pentair 1/2" x short MPT nipple R172256ZCall us and we'll get it for you.
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    • Not sold online Pentair 5/8" OD short feeder tube (tube support spring R171097Z optional) R172091Call us and we'll get it for you.
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    • Not sold online Pentair 2" x 1-1/2" S x S bushing, for 1-1/2" PVC only (2 needed) R172210Call us and we'll get it for you.
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    • Not sold online Pentair spa chamber (optional) R172037Call us and we'll get it for you.
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    • Not sold online Pentair silicone lubricant, 3/4 oz. R172036ZCall us and we'll get it for you.
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    • Not sold online Pentair screen 210396ZCall us and we'll get it for you.
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    • Not sold online Pentair 1/2" NPT PVC plug R172134Call us and we'll get it for you.
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    • Not sold online Pentair 5/8" OD 18" tube (optional top feed) R172253ZCall us and we'll get it for you.
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    • Not sold online Pentair bottom O-ring R172319ZCall us and we'll get it for you.
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Fit guide

Which Rainbow 320 feeder part do you need?

The Rainbow 320 is Pentair's in-line automatic feeder (order no. R171096). Part numbers come from Pentair's model 320 replacement parts list.

Lid & lid O-ring

3 in. threaded cap item 2, white
R172008W
Cap O-ring item 3
R172009Z Aladdin O-283
Bottom O-ring item 18
R172319Z
Cap wrench item 1, optional
R172052

Valve & feed tube

1/2 in. control valve item 9
R172086Z
1/2 in. NPT x tube 90° ell with nut item 10, 2 needed
R172272Z
Compression nut only item 10, optional
R172274Z
5/8 in. o.d. short feeder tube item 11
R172091
18 in. tube, optional top feed item 17
R172253Z

Tee, bushings & check valves

Diverter tee item 7, 1-1/2 NPT x 2 in. slip
R172317
2 in. x 1-1/2 in. bushing item 12, 2 needed
R172210, 1-1/2 in. PVC only; not used with 2 in. PVC
Check valve item 6
R172248Z
1-1/2 in. corrosion resistant check valve item 19, optional
R172288