Complete lid assembly for the Rainbow RTL and RCF series filters. Includes air valve, o-ring, and gasket (parts 2, 3, and 4). 13 as shown in the schematic above.
Part details:
- Complete lid assembly (does not have chemical dispenser)
- Fits RTL and RCF series filter
- OEM part number R172385
- Part 13 on the schematic
- Note image shows top and bottom of assembly, price is for one.
When purchasing replacement parts for the top loading filter in your hot tub always confirm replacement part compatibility to ensure proper fit.
![DEWALT 1-Piece 4"x22" SDS Max Core Bit [DW5925]](https://www.electrictooltrail.com/wp-content/uploads/2026/10/dewalt-1-piece-4-x22-sds-max-core-bit-dw5925.webp)
