Mixed-Bed DI Unger Resin - 25L Bag

As DI resin becomes exhausted, minerals can pass through your system, causing TDS readings to rise and increasing the risk of spotting on glass. Replacing it with Unger Virgin Mixed-Bed DI Resin helps maintain the low-TDS rinse water needed for professional window cleaning.

Supplied in a 25L loose-fill bag, this high-capacity resin is suitable for refilling compatible DI vessels and cartridges.

Key Features:

• Helps remove dissolved minerals to lower water TDS
• Suitable for DI-only systems or final filtration after reverse osmosis (RO)
• Virgin mixed-bed ion-exchange resin for pure water cleaning systems

Ideal For:

• Window Cleaning: Maintaining low-TDS rinse water in water-fed pole systems to help reduce spotting on glass.
• Solar Panel Cleaning: Producing purified rinse water to help reduce mineral deposits on panels. Always follow the panel manufacturer's cleaning guidance.
• Commercial Exterior Cleaning: Keeping purified water systems ready for regular glass and exterior cleaning work, including RO/DI and double-DI setups.

When to Replace: Check the water leaving your DI vessel with a TDS meter. Rising readings can indicate the resin needs replacing. Resin life depends on the incoming water quality and usage.

Please Note: This is loose-fill resin, not pre-packed replacement bags. Check your vessel or cartridge is suitable before ordering.

Safety & Handling: Wear suitable gloves and eye protection when handling resin, wash hands afterwards and clear up spilled beads promptly. Store the bag sealed in a cool, dry place. See the Unger Safety Data Sheet for full handling guidance.

Need a refillable vessel? See our 11L DI Resin Filter Vessel (Empty).