SCB-5-30ESS - 5 micron, 20in - 222/Closed/Silicone O-rings - Spectrum Powder Activated Standard Carbon Block 107412

For full details on returns, refunds, eligibility, and timeframes, please refer to our complete Refund Policy here:

👉 Refund and Returns Policy

If you are unsure whether your item qualifies for return, please contact our team before sending anything back and we’ll be happy to help.

It refers to the seal and end-cap type — a 222-style closed end fitted with Silicone O-rings, designed for housings that use this specific internal seal rather than a double-open-ended (DOE) cartridge. Check your housing's seal type before ordering to make sure it matches.

The SCB uses a powder-activated carbon block, which packs more active surface area into the block than a standard granular/extruded carbon block, giving more effective chlorine, taste and odour reduction for its size. It's Spectrum's standard-grade carbon block, sitting above the ECB Economic range in reduction performance.