Inline 0.5uM 1uMa Nano Silver Infused Carbon Block Caravan Water Filter – Sentry Water Filters
Xline 20" Carbon Block Pre-Filter | Xline Systems
Activated carbon block water filter replacement 10" x 2.5" cartridge | eBay
Hydronix 4 Pack Carbon Block Water Filters Coconut Shell CTO for Whole House, RO, DI, Hydroponics - 10" x 2.5", 5 Micron : Amazon.co.uk: DIY & Tools
Spectrum Spectrum SCB-LD Standard Carbon Block Cartridge, 5 Micron, 20inBB x 4.5in Big Blue From £111.42 - Spectrum Water Filters by Wrekin Water Filtration
Doulton Carbon Block 9C94 Chlorine Reduction Water Treatment Cartridge – Doulton Water Purifier, Sole Distributor (MY) - Britain Premium Brand Since 1826
Pentek ChlorPlus Carbon Block Filter 20 Inch
Carbon Block for Chlorine, taste & odour - Pureflo Water