BWT PSJ400 Twin Prefilter System 4.5" × 20"
- Two-Stage Filtration
- Twin 20-Inch Housings
- Commercial RO Protection
BWT PSJ400 Twin Prefilter System 4.5" × 20"
The BWT PSJ400 is a high-capacity twin prefilter system designed to provide two-stage water filtration before commercial equipment or reverse osmosis systems.
The first housing contains a BWT PS5W20 polyspun sediment cartridge that reduces dirt, rust and suspended particles down to a nominal 5-micron rating.
Water then passes through the included FB5W20 Fibron cartridge, which provides additional sediment filtration while reducing chlorine and unwanted tastes and odours.
This two-stage configuration helps protect sensitive equipment and reverse osmosis membranes from sediment blockages and chlorine degradation. Its twin 4.5" × 20" housings make it suitable for demanding commercial installations requiring dependable filtration and longer service intervals.
A downstream pressure gauge allows operators to monitor water pressure and cartridge restriction. Vent buttons make it easier to release trapped air and pressure during servicing.
What's in the Box?
Specifications
- Brand: BWT
- Model: PSJ400
- Manufacturer Number: H15DN2EF
- System Configuration: Twin, two-high system
- Number of Housings: Two
- Cartridge Size: 4.5" × 20"
- First-Stage Cartridge: BWT PS5W20 polyspun sediment filter
- Second-Stage Cartridge: BWT FB5W20 Fibron carbon filter
- Filtration Rating: 5 micron nominal
- Maximum Flow Rate: Less than 30L per minute
- Operating Pressure: 100–860kPa
- Operating Temperature: 5–40°C
- Inlet Connection: 3/4" BSP male
- Outlet Connection: 3/4" BSP male
- Recommended Cartridge Replacement: Every 12 months or when downstream pressure falls below 50kPa during demand
- Height: 72cm
- Width: 42cm
- Weight: 13kg
- Feed Water: Potable water only
- Replacement Sediment Cartridge: BWT PS5W20
- Replacement Carbon Cartridge: BWT FB5W20
Features:
- Commercial twin prefilter system
- Two 4.5" × 20" jumbo filter housings
- Two-stage sediment and carbon filtration
- Includes BWT PS5W20 sediment cartridge
- Includes BWT FB5W20 Fibron carbon cartridge
- Nominal 5-micron filtration
- Reduces sediment, dirt and rust
- Reduces chlorine, unwanted tastes and odours
- Helps protect reverse osmosis membranes
- Downstream pressure gauge
- Vent buttons for air and pressure release
- Suitable for high-capacity commercial applications
- Mounting bracket included
- Housing sump spanner included
Coffee Parts Thoughts:
The PSJ400 is the most comprehensive option in the PSJ range for sites needing dedicated sediment and carbon filtration.
Using a separate PS5W20 sediment cartridge before the FB5W20 carbon cartridge helps prevent larger amounts of dirt and rust from prematurely restricting the carbon stage. This makes it a strong choice for busy commercial sites or incoming water supplies with higher sediment levels.
The downstream pressure gauge should be checked regularly, as cartridge life will depend on water quality and daily consumption.
| Brand | BWT |
|---|---|
| Model | D15DN2AF |
| Suits | RO |
| Warranty | 1 Year |
| Returns | 30 Days Change of Mind |
| Filter System | Head Only |
| Filter Connection | 3/8 inch bsp |
| Flush Port | No |
| Shut-off Valve | Yes |
| Item Returns | This item can be returned |
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