Watts-RC-W-BB-975-50 Empty Refillable Canister Cartridge White Full Flow 10 in Harmsco1295 Even though the bulb may

Even though the bulb may still emit visible light after a year

The 300 PPM concentration is ideal for mid-range calibration of instruments used in residential water testing and light commercial applications

Replace the K5520P carbon block filter cartridge annually regardless of water usage to maintain optimal chlorine reduction and scale inhibition performance

Effectively removes dissolved ionic contaminants to produce low-conductivity water for specialized applications requiring mineral-free feed water

Watts-RC-W-BB-975-50 Empty Refillable Canister Cartridge White Full Flow 10 in Harmsco1295 Even though the bulb mayWatts RC W BB 975 50 10 Inch Refillable Filter Cartridge Empty canister designed for custom media loading with 50 micron retention pad FDA Polypropylene 4. 5" x 10" Standard Size 125 PSI Max EPDM Gaskets The Watts RC W BB 975 50 gives you control over what goes into your whole house filtration system. This empty refillable canister lets you load granular activated carbon, deionization resin, mixed bed ion exchange media, or water softening granules