SFHS-1-20LD : SPECTRUM Aqualyze Single System Large Diameter 20" with Complete Adaptor Kit
Technical Resources
Technical Resources
SPECTRUM Aqualyze Single System Large Diameter 20" with Complete Adaptor Kit – SFHS-1-20LD
The SPECTRUM Aqualyze SFHS-1-20LD Single System is a high-capacity 20" Large Diameter filter housing designed for commercial, industrial and higher-flow water filtration applications. Supplied as a complete packaged system with the necessary installation and monitoring accessories, it provides a convenient single-stage filtration solution for targeting contaminants such as sediment, bulk solids or organics, depending on the cartridge selected.
Designed specifically to accept 20" x 4.5" Large Diameter (LD) filter cartridges, the SFHS-1-20LD provides significantly greater cartridge capacity than conventional standard-diameter housings. The large-format design makes it particularly suitable for installations requiring higher flow rates, increased contaminant holding capacity and longer cartridge service life.
The system features a 1" connection and can accommodate flow rates of up to 90 litres per minute when fitted with a suitable pleated cartridge. The SPECTRUM specification also identifies typical maximum flow rates of approximately 40 lpm for depth cartridges and 15.2 lpm for carbon cartridges, demonstrating the importance of selecting the appropriate cartridge for the required application and flow rate.
Complete Adaptor Kit
The SFHS-1-20LD is supplied with a complete adaptor kit, providing greater flexibility when integrating the housing into new or existing water treatment installations. For the 20LD configuration, the manufacturer's specification lists fittings to adapt the 1" housing connections to 22 mm or 28 mm pipework.
Large Diameter Cartridge Compatibility
This housing is only compatible with Large Diameter cartridges measuring approximately 20" long x 4.5" diameter. It is not designed for standard 2.5" diameter filter cartridges.
Compatibility with AA, DOE and CG end-cap configurations provides flexibility when selecting SPECTRUM Large Diameter cartridges for different filtration duties. The manufacturer's SFH specification confirms DOE, AA and CG end-cap compatibility across the range.
Key Features & Benefits
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Single 20" Large Diameter housing for high-capacity water filtration
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Accepts 1 x 20" x 4.5" Large Diameter cartridge
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Complete adaptor kit included for convenient installation
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1" inlet and outlet connections
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Up to 90 lpm flow rate with a suitable pleated cartridge
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Compatible with AA, DOE and CG end caps
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Buna-N seal for reliable housing sealing
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Lightweight housing construction for straightforward installation
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Suitable for sediment, depth, carbon and other compatible water-treatment cartridges
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Single-stage configuration provides a compact and economical filtration solution
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FDA compliant materials
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PED compliant – Article 4, Paragraph 3, Group 2 liquids
Technical Specification
| Specification | Details |
|---|---|
| Product Code | SFHS-1-20LD |
| Product Range | SPECTRUM Aqualyze |
| Configuration | Single Housing / 1 Cartridge |
| Cartridge Size | 20" x 4.5" Large Diameter |
| Housing Material | Polypropylene |
| Port Size | 1" |
| Seal | Buna-N |
| Maximum Temperature | 42°C |
| Maximum Pressure | 7.0 bar |
| Maximum Flow Rate | Up to 90 lpm* |
| End-Cap Compatibility | AA / DOE / CG |
| Cartridge Compatibility | 20" Large Diameter cartridges only |
| Adaptor Options | 22 mm / 28 mm |
| Replacement O-Ring | SFH-ORING-LD |
*Maximum achievable flow depends on the cartridge type, micron rating, water quality and operating conditions. The manufacturer's specification gives flow rates of 40 lpm for depth, 15.2 lpm for carbon and 90 lpm for pleated 20LD cartridges.
Dimensions
The single SFHS-20LD configuration measures approximately:
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A: 185 mm
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B: 721 mm
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C: 195 mm

These dimensions correspond with the single 20LD housing drawing and dimensional table shown on page 2 of the SPECTRUM specification.
Applications
The SPECTRUM Aqualyze SFHS-1-20LD Large Diameter Filter Housing can be configured for a wide range of water treatment duties simply by selecting the appropriate compatible cartridge. Typical applications include sediment reduction, particulate filtration, bulk solids removal, chlorine reduction, taste and odour treatment and general pre-filtration.
Its combination of a 20" Large Diameter cartridge format, 1" connections and flow capability up to 90 lpm makes the SFHS-1-20LD an excellent choice where a standard filter housing does not provide sufficient flow capacity or cartridge surface area.
Important: The SFHS-1-20LD is designed exclusively for 20" Large Diameter (4.5") cartridges. Standard diameter 20" x 2.5" cartridges are not compatible.
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