WSE Replacement Cartridge – Restore Zero‑PPM Performance The WSE Replacement Cartridge keeps your Water Spot Eliminator performing at its best. Over time, as the filter removes minerals from your tap water, the TDS reading will slowly rise. Once your meter shows around 15 ppm, spotting can begin — that’s your signal to replace the internal cartridge. This replacement unit drops straight into your WSE housing and includes a new top seal to ensure a perfect, leak‑free fit. Once installed, your system immediately returns to producing pure zero‑ppm water, giving you spot‑free rinsing and towel‑free drying once again. Why it matters: Restores full zero‑ppm filtration performance Prevents water spotting as TDS levels rise Includes a fresh top seal for a perfect fit Quick, simple, drop‑in replacement Keeps your WSE system running like new A small part that makes a big difference — swap it in and enjoy flawless, spot‑free rinsing again.