SimPure Double Jumbo 10" Filtration System with Sediment and Carbon CTO Filter

The SimPure DB10C-2 is a heavy-duty, two-stage whole house filter housing built around the industry-standard 10" x 4.5" cartridge format. Mounted at the point of entry, it conditions all the water entering your home – kitchen, bathrooms, showers, washing machine and outside taps – from a single installation point. Both cartridges arrive pre-installed, so the system is ready to plumb in straight out of the box. How the two stages work Stage 1 – Sediment cartridge: captures rust flakes, sand, silt and pipe scale that can stain fixtures, block aerators and shorten the life of appliances. Stage 2 – Carbon block (CTO) cartridge: reduces chlorine, chlorine by-products, taste and odour, leaving water that's noticeably softer on the palate and easier on the skin and hair. Because the housing uses the universal 10" x 4.5" format, you're not tied to one supplier – any standard Big Blue cartridge will fit when it's time for a change, including specialist options like KDF, GAC, scale inhibitor or 1-micron carbon blocks. Compatibility Standard 1" female BSP inlet and outlet ports – fits straight into UK whole-house plumbing. Accepts any standard 10" x 4.5" ("Big Blue") cartridge for future upgrades or specialist filtration needs. Suitable for cold mains feeds in domestic and light commercial settings. Technical specifications Model SimPure DB10C-2 Cartridge size 10" x 4.5" (universal Big Blue format) Stages 2 (Sediment + Carbon Block CTO) Inlet / outlet 1" female BSP thread Maximum flow rate 15 GPM (57 litres per minute) Operating pressure 25–90 psi (1.7–6.2 bar) Water temperature 5–38°C (41–100°F) pH range 6 – 11 Housing material Food-grade polypropylene Pressure relief Built-in pressure relief valve on filter head If your incoming mains pressure exceeds 90 psi (6.2 bar) you'll need to fit a pressure regulator upstream. UK mains pressure is typically well within range, but worth checking before installation. Installation notes The system is designed for wall mounting at the point of entry, downstream of your stopcock. It ships with everything needed for a standard install, so no extra fittings are required for the housing itself – only the connecting pipework to your mains. We'd recommend installing isolation valves on the inlet and outlet so cartridge changes are quick and tidy. Cartridge replacement intervals depend on local water quality and household usage, but as a guide: sediment every 6 months, CTO every 6 – 12 months. What's included DB10C-2 twin filter housing with mounting bracket and built-in pressure relief valve Pre-installed 10" x 4.5" sediment cartridge (Stage 1) Pre-installed 10" x 4.5" carbon block CTO cartridge (Stage 2) Filter bowl wrench 2 x wall mounting screws 2 x spare housing O-rings 2 x rolls of PTFE (Teflon) tape Punch positioning sticker for accurate wall marking Instruction manual