💧 Chemical Dispenser, Pentair Rainbow RTL/Bromine
Made by Rainbow/Pentair, manufacturer part number R172540.
📏 Specifications
| Specification | Value |
|---|---|
| Brand | Rainbow/Pentair |
| Manufacturer part number | R172540 |
| Catalog description | Chemical Dispenser, Pentair Rainbow RTL/Bromine |
California Residents WARNING: Cancer and Reproductive Harm
Exploded parts diagrams: This part is shown as item #14a on the Bromine Dispenser, Pentair Rainbow; the Inline Filter, Pentair Rainbow, RTL/RCF Series Top Load exploded parts diagrams.
🔧 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 ◀ this part |
| 13 | 88-375-1010 |
| 12 | Check Valve Assembly, Pentair Rainbow Bromine |
| 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 Inline Filter, Pentair Rainbow, RTL/RCF Series Top Load assembly. Everything listed below is something we stock for it, and the numbers match the diagram.
| No. | Part | Our part number | Availability | Price | ||
|---|---|---|---|---|---|---|
| 1 | ![]() |
Lock Ring, Pentair Rainbow RDC/RTL/Leaf Traps | R172214 | Available to order | $28.67 | |
| 2 | ![]() |
Air Bleed Valve, Pentair Rainbow RDC/RTL/Bromine | R172224XZ | 40 in stock | $9.31 | Add to cart |
| 4 | ![]() |
Gasket, Rainbow RTL/RDC/Bromine, Lid, 2" ID, 2-7/8" OD | R172222Z | 6 in stock | $4.52 | Add to cart |
| 5 | ![]() |
O-Ring, Viton, 5-7/8" ID, 3/16" Cross Section, Generic | 360-VT75BR | 42 in stock | $16.77 | Add to cart |
| 7 | ![]() |
Bypass Plug, Pentair Rainbow RDC/RTL, 1-1/2" | R172225X | 22 in stock | $1.17 | Add to cart |
| 7 | ![]() |
Bypass Plug, Pentair Rainbow RDC/RTL, 2" | R172679 | 14 in stock | $6.23 | Add to cart |
| 12 | ![]() |
Push Down Lever, Pentair Rainbow RTL | R172374 | 15 in stock | $8.83 | Add to cart |
| 13 | ![]() |
Safety Latch Screw, Pentair Rainbow RTL | R172375 | 4 in stock | $2.48 | Add to cart |
| 14 | ![]() |
Filter Body | R172639 | 27 in stock | $63.57 | Add to cart |
| 15 | ![]() |
Tank Lid, Pentair Rainbow RTL | R172385 | 25 in stock | $41.21 | Add to cart |
| 16 | ![]() |
Tank Base, Pentair Rainbow RTL | R172452 | 16 in stock | $20.77 | Add to cart |
Ro-Kit 251s
| Part | Our part number | Availability | Price | ||
|---|---|---|---|---|---|
![]() |
Niche Only Dg | R172610DG | 1 in stock | $15.79 | Add to cart |
![]() |
Ro-Kit 251, Rainbow In-Line and Top Load Filters | RO-KIT 251 | 8 in stock | $8.64 | Add to cart |
Complete cartridge filters
| No. | Part | Our part number | Availability | Price | ||
|---|---|---|---|---|---|---|
| 17 | ![]() |
Cartridge Filter, Pentair Rainbow RTL-25, Top Load, 2" Slip | R172502J | Available to order | $219.06 | |
| 17 | ![]() |
Cartridge Filter, Pentair Rainbow RTL-50, Top Load, 2" Slip | R172504B | Available to order | $240.03 | |
| 17 | ![]() |
Cartridge Filter, Pentair Rainbow RTL-100, Top Load, 2" Slip | R172505 | Available to order | $329.04 |
Parts that go with this
| Part | Our part number | Availability | Price | ||
|---|---|---|---|---|---|
![]() |
Cart, 50sqft, 2-1/8"ot, 2-1/8"ob,4-15/16"dia, 13-5/16"L, 3oz | 40506 | 359 in stock | $34.64 | Add to cart |
























