Non-slip grip for safe, comfortable use The wrench features a textured, non-slip handle that prevents slipping and reduces hand fatigue during repeated use. It gives a secure grip on wet or oily surfaces for safer operation. Wide compatibility (holds 5–15 cm) Designed to grip diameters from 5 to 15 cm (approx. 2 to 6 inches), making it compatible with a range of water filter components: water purification filter bottles, 10‑inch and 20‑inch filter housings, and both large and small membrane housings. Durable ABS construction Made from high-quality ABS plastic that resists wear and impact to provide reliable performance and a long service life in routine maintenance tasks. Compact, portable design Lightweight and compact for easy storage and transport. Keeps a specialized tool on hand for quick filter changes whether at home, on-site, or in the field. How this wrench helps you Simplifies opening and closing filter housings that are tight or hard to reach. Reduces effort and risk of slipping compared with improvised tools. Provides a single, reliable tool that fits multiple housing sizes, so you don’t need several wrenches. Practical use scenarios Home water filter maintenance: Quickly remove and reinstall 10‑inch or 20‑inch filter housings when replacing cartridges. Service and installation: Handy for technicians changing membrane housings or servicing purification systems in offices and small commercial settings. Field or portable systems: Easy to carry for on-site work, emergency filter changes, or maintaining portable water treatment units. Key specifications at a glance Grip type: Non-slip textured handle Compatible holding diameter: 5–15 cm Material: High-quality ABS (wear- and impact-resistant) Design: Compact and lightweight for portability Reliable, simple, and purpose-built for water filter maintenance—an essential tool for anyone who replaces or services filter housings and membrane cases.