Features
- Dual Action Water Softener: This 4.5 x 20-inch water softener combines powerful ion exchange technology with silver ion enhancement to reduce hardness minerals (such as calcium and magnesium) and improve overall water quality.
- NSF Certified Resin for Safe Drinking Water: The resin used in this water softener is NSF certified and food-grade, making it safe for drinking water, ensuring peace of mind for your family’s health.
- Silver Ion Enhanced:Silver ions optimize water quality by reducing harmful substances and sediments, improving the overall purity of the water, and providing a safer, fresher water source for your family.
- Prevents Scale Build-up: By softening the water and reducing hardness minerals, this system effectively prevents scale accumulation in pipes, water heaters, appliances, and fixtures, prolonging their lifespan and improving their efficiency.
- Compatible with Standard 20-Inch Filter Systems: This water softener is designed to fit seamlessly into any standard 20-inch whole house filtration system, making installation simple and hassle-free.(Compatible models:WGB32B,WCB32C,DB20P-3,AB-WH ,WH-300RS)
Specifications
| Size | 4.5"x4.5"x20" |
| Unit Count | 1 |
Related Tools
This 4.5 x 20-inch ion-exchange cartridge reduces water hardness by removing calcium and magnesium and includes silver ion enhancement to limit microbial presence and reduce sediments. It uses NSF-certified food-grade resin suitable for drinking water and fits standard 20-inch whole-house filter housings to help prevent scale buildup in plumbing and appliances.
Project Ideas
Business
Replacement Subscription & Swap Service
Offer a recurring replacement subscription: customers receive a new 20" cartridge every X months based on their hardness and usage, with an option for professional swap/install. Pricing tiers (basic ship-only, premium swap + test) create steady recurring revenue. Add onboarding water-test kits and usage analytics (log replacement date and household size) to reduce churn.
B2B Appliance Protection Contracts
Sell recurring cartridge supply and maintenance contracts to landlords, Airbnb/property managers, cafés, salons, and laundromats. Position the service as an appliance-protection program that lowers repair costs and improves guest/customer satisfaction. Contracts can include periodic water-hardness testing, emergency replacements, and a discount on bulk cartridges.
Mobile Filter Swap Van / Kiosk
Run a local mobile swap service: customers drive to or book a van that swaps spent cartridges for fresh ones in minutes. Offer on-site water testing, installation, and disposal of spent cartridges. The mobile model reduces overhead vs. a storefront and is a visible way to build local brand recognition at farmer’s markets, hardware fairs, and RV parks.
Plumbing & Appliance Channel Partnerships
Partner with plumbers, HVAC techs, and appliance repair shops as a co-branded upsell: train partners to install the 20" cartridge in-line as part of service calls and supply them with wholesale cartridges and branded literature. Offer lead-sharing or service commissions and a small starter kit so they can demonstrate benefits during installs.
RV & Marine Packaged Kits
Develop specialized kits for RV and boat owners: a compact 20" housing pre-filled with the resin cartridge, quick-connect fittings for common RV/boat plumbing, and instructions for DIY install. Sell through RV parks, marinas, and campground stores, and offer short-term rental/subscription for travelers who want softened water while on the road.
Creative
Portable Soft-Shower for Camping & RVs
Build a portable inline soft-water station by installing the 4.5"x20" cartridge into a compact 20" filter housing with quick-connect garden-hose fittings. Mount it in a small plywood carrying case with a shower head and hose so campers and RVers get softer shower and wash water (better lather, less soap scum). Notes: size and service life depend on water hardness — label capacity and include a spare cartridge. Keep clear instructions for safe disposal/replacement.
Countertop Coffee & Tea Brew Feed
Create a dedicated softened-water feed for home baristas and small cafés. Use a short length of food-grade tubing and inline 20" housing under the counter to feed pour-over, espresso, or tea stations. Soft water improves extraction and flavor consistency. Package as a DIY kit with fittings, a decorative wooden or metal mount, and a simple hardness test strip so customers know when to replace the cartridge.
Appliance Protection Point-of-Use Box
Make a handsome wooden or powder-coated steel box to house a 20" cartridge for point-of-use installation on washing machines, dishwashers, or water heaters. The box conceals plumbing, keeps the cartridge accessible for swaps, and can include labels showing expected life and savings (less scale, longer appliance life, lower energy use). This is a great weekend maker project that results in a real household upgrade.
LED Column Lamp (Upcycle)
Upcycle a spent cartridge into a striking lamp: safely remove and retain or rinse out resin beads (resin is NSF food-grade), then refill the clear cartridge with decorative glass marbles, sea glass, or colored resin beads. Insert an LED rope or strip inside, cap the ends, and mount on a base. The result is a diffusion column lamp that showcases the cylindrical form. Include safety notes about cleaning and not using damaged housings.
Greenhouse/Irrigation Pre-Filter
Use the cartridge inline as a pre-filter on greenhouse irrigation or drip systems to reduce hard-water scale that clogs emitters and sprayers. Install the 20" housing at the system inlet with shutoff valves and a bypass for maintenance. For small growers this is an affordable, easy-to-swap way to protect irrigation hardware and reduce maintenance frequency.