S1 Series cartridges are manufactured from a pleated cellulose media and are designed for general water filtration purposes. The media is pleated around a polypropylene core for added strength and the ends are immersed in a thermo-setting vinyl plastisol. Embedding and sealing each end of the pleat in this fashion fuses the three components together forming a unified end cap and gasket.
Features:
- Economically priced
- Nominal 20-micron rating
- Reduces sand, sediment, silt, rust particles, and scale particles
- Pleated cellulose design maximizes dirt-holding capacity
The
Pentek S1-20BB filter media is pleated around a polypropylene core for added strength and the ends are immersed in a thermo-setting vinyl plastisol. Embedding and sealing each end of the pleat in this fashion fuses the three components together forming a unitized end cap and gasket. An external netted sheath helps retain uniform pleat spacing in high flow and pulsating flow streams. The overlap seam is sonically welded to reduce bypass improving filtration efficiency.
Not Recommended for use with well water or other non-chlorinated sources. Also known as American Plumber® W20CLHD20, the Pentek S1-20BB is private labled for many other brands including: Ametek S1-20BB, Bruner S1-20BB, Keystone GC20-20, Kleen Plus S1-20BB, USFilter S1-20BB, Plymouth Products S1-20BB
Compatible with:| Cartridges for Heavy Duty Housings | W20CLHD20, 155305-51 |
| Keystone | GPC20-20 |
California residents
Prop 65 Warning
WARNING! This product contains materials known to the State of California to cause cancer and birth defects or other reproductive harm. www.p65warnings.ca.gov
| Product Details |
|---|
Core Material | Polypropylene |
Initial Pressure Drop | 1.2 PSI Differential |
Max Temp (°F) | 145 |
Micron Rating (Nominal) | 20 µm |
Min Temp (°F) | 40 |
Psid@Flow Rate | 1.2 psid @ 10 GPM |
Recommended Flow Rate | 35 GPM |
Surface Area | 4280 Square Feet |
Cap Material | Vinyl-Plastisol |
Cartridge Style | Drop-in |
Contaminants Reduced | Sediment/Dirt/Rust |
Diameter | 4-1/2" |
End Cap Type | Double Open Ended (DOE) |
Filter Construction | Pleated |
Filter Type | Pleated |
Flow Rate | 35 GPM |
Media Type | Resin Impregnated Cellulose |
Micron Rating | 20 µm |
Origin | Mexico |
| Shipping Dimensions |
|---|
Shipping Length | 20 in. |
Shipping Width | 5 in. |
Shipping Height | 5 in. |
| Product Weight & Dimensions |
|---|
Product Height | 4.5 |
Product Length | 19.75 |
Product Width | 4.5 |
Product Weight (lbs) | 1.75 |


1. Your order is usually shipped out within 24-48 hours after your payment is received.
2. The tracking number of your parcel will be sent to you after your order is despatched. You may use the tracking number to check the status of your order online.
3. The shipping fee will be auto-added in the grand total when you send payment.