💧 Check Valve Assembly, Pentair Rainbow Bromine
Made by Rainbow/Pentair, manufacturer part number R172406.
📏 Specifications
| Specification | Value |
|---|---|
| Brand | Rainbow/Pentair |
| Manufacturer part number | R172406 |
| Catalog description | Check Valve Assembly, Pentair Rainbow Bromine |
Exploded parts diagram: This part is shown as item #12 on the Bromine Dispenser, Pentair Rainbow exploded parts diagram.
🔧 Bromine Dispenser, Pentair Rainbow – exploded parts diagram

The numbered parts below make up this assembly. Parts we stock are linked – click any to view.
| No. | Part |
|---|---|
| – | Ro-Kit 251, Rainbow In-Line and Top Load Filters |
| 14d | Basket, Skimmer Feeder, OEM Rainbow/Pentair DFM short basket |
| 14c | Basket, Rainbow/Pentair DDFM/DFML, with Feeder, OEM, White |
| 14b | Chemical Dispenser, Pentair Rainbow DSF/Bromine |
| 14a | Chemical Dispenser, Pentair Rainbow RTL/Bromine |
| 13 | 88-375-1010 |
| 12 | Check Valve Assembly, Pentair Rainbow Bromine ◀ this part |
| 11 | Check Valve Screen, Pentair Rainbow Bromine |
| 10 | O-Ring, 1" ID, 1/8" Cross Section, Generic |
| 9 | Inner Chamber, Pentair Rainbow Bromine |
| 8 | Gasket, Rainbow RTL/RDC/Bromine, Lid, 2" ID, 2-7/8" OD |
| 7 | 16-196-W007K7 |
| 6 | 17-196-1400 |
| 5 | O-Ring, 3/8" ID, 1/16" Cross Section, Generic |
| 4 | Air Bleed Valve, Pentair Rainbow RDC/RTL/Bromine |
| 3 | Stop Pin, Pentair Rainbow Bromine |
| 2 | O-Ring, 7/16" ID, 3/32" Cross Section, Generic |
| 1 | Control Valve Stem, Pentair Rainbow Bromine |
🔧 Exploded diagram and parts
This part belongs to the Bromine Dispenser, Pentair Rainbow assembly. Everything listed below is something we stock for it, and the numbers match the diagram.
Complete ro-kit 251s
| Part | Our part number | Availability | Price | ||
|---|---|---|---|---|---|
![]() |
Ro-Kit 251, Rainbow In-Line and Top Load Filters | RO-KIT 251 | 8 in stock | $8.64 | Add to cart |
Chemical Dispensers
| No. | Part | Our part number | Availability | Price | ||
|---|---|---|---|---|---|---|
| 4 | ![]() |
Air Bleed Valve, Pentair Rainbow RDC/RTL/Bromine | R172224XZ | 40 in stock | $9.31 | Add to cart |
| 7 | ![]() |
O-Ring, Viton, 5-7/8" ID, 3/16" Cross Section, Generic | 360-VT75BR | 42 in stock | $16.77 | Add to cart |
| 8 | ![]() |
Gasket, Rainbow RTL/RDC/Bromine, Lid, 2" ID, 2-7/8" OD | R172222Z | 6 in stock | $4.52 | Add to cart |
| 14a | ![]() |
Chemical Dispenser, Pentair Rainbow RTL/Bromine | R172540 | 10 in stock | $87.85 | Add to cart |











