
Quick overview
- Pleatco PRB18-4 The Pleatco replacement element, part number PRB18-4.
- 18 square feet Rated at 18 sq ft of filter area.
- Module and Rainbow filters Listed for Standard and High SF Module Filters in the MX Series, Lifeguard CL 29x and Rainbow housings.
- Pentair housings The filter manufacturer on this listing is Pentair.
- Listed dimensions Outside diameter 2-7/8 in, length 29-1/4 in.
- Measure before you order Cartridge part numbers are reused across sizes, so check your old element against the listed diameter and length.
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Product details
The Pleatco PRB18-4 is a replacement filter cartridge rated at 18 square feet of media area. Pleatco lists it for Standard and High SF Module Filters in the MX Series, for Lifeguard CL 29x housings and for Rainbow filters, with Pentair given as the filter manufacturer.
When to change a cartridge
A cartridge does not fail all at once. Pressure creeps up, flow drops off, and cleaning brings the pressure down for a shorter stretch each time. Once a wash no longer restores normal running pressure, the pleats are loaded or broken down and a new element is the fix.
Check the size first
This listing gives an outside diameter of 2-7/8 in and a length of 29-1/4 in. Cartridge families reuse part numbers across several sizes, so measure the element you are replacing and compare it against those numbers before ordering.
| Brand | Pleatco |
|---|---|
| Manufacturer part number | PRB18-4 |
| UPC | 799932634369 |
| Square footage | 18 |
| Outside diameter | 2-7/8" |
| Length | 29-1/4" |
| Filter manufacturer | Pentair |
| Fits | Standard and High SF Module Filters (MX Series), Lifeguard CL 29x, Rainbow |
| Shipping weight | 0.77 lb |
| Ships | Parcel |
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