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Description
This Crystal Quest mixed bed deionization cartridge polishes reverse osmosis water to 14 to 18 megohm-cm resistivity in its 2-7/8" sizes. It is made for technical water such as reef keeping, laboratory use, rinsing and plating, and spot-free washing, and is not intended for drinking water.
Highlights
- Mixed cation (hydrogen form) and anion (hydroxide form) resins exchange dissolved ions for pure water
- Targets calcium, magnesium, sodium and other metal ions, plus chloride, sulfate, nitrate and bicarbonate
- Designed as the final polishing stage after an RO system
- Published grain capacity and estimated gallons for the 2-7/8" sizes help plan replacements
- Output is easy to check with a resistivity or TDS meter
- Four sizes for standard slim and Big Blue housings
Details
Avermont Direct is an authorized Crystal Quest dealer. The resin bed shows dark cation beads mixed with light amber anion beads, held in place by a pad, and the cartridge seals into a standard housing. Crystal Quest builds it in the USA under ISO 9001 quality management.
Need Help?
Free shipping on orders over $200
If you have questions about this product before you order, our team is happy to help.
Email: support@avermontdirect.com
Phone: +1 (844) 455-3695
Hours: Monday–Friday, 9AM–5PM
Live Chat: Available 24/7
| Type | Mixed bed deionization (DI) resin cartridge |
| 2-7/8" x 9-3/4" (CQE-RC-0500) | Fits 2.5" x 10" housings; 0.2 GPM operating / 0.3 GPM max; 450 grains (as CaCO3); about 33 gal at 200 ppm feed TDS, 680 gal at 10 ppm |
| 2-7/8" x 20" (CQE-RC-0501) | Fits 2.5" x 20" housings; 0.4 GPM operating / 0.6 GPM max; 900 grains (as CaCO3); about 66 gal at 200 ppm feed TDS, 1,360 gal at 10 ppm |
| 4-5/8" x 9-3/4" (CQE-RC-0502) | Fits 5" x 10" Big Blue housings; flow and capacity confirmed on request |
| 4-5/8" x 20" (CQE-RC-0503) | Fits 5" x 20" Big Blue housings; flow and capacity confirmed on request |
| Output (2-7/8" Sizes) | 14 to 18 megohm-cm resistivity |
| Operating Temperature (2-7/8" Sizes) | 40 to 85 F (5 to 29 C) |
| Operating Pressure (2-7/8" Sizes) | 20 to 125 PSI (1.4 to 8.6 bar) |
| Micron Rating (2-7/8" Sizes) | 25 micron |
| Materials (2-7/8" Sizes) | ABS cap and body, PE pad, EPDM gasket |
| Recommended Feed | Reverse osmosis treated water |
| Pack Options | Single, pack of 2, pack of 4 |
- Not intended for drinking use; it produces technical water only
- Not designed to treat bacteria, viruses, sediment, chlorine or most dissolved organic chemicals; place sediment, carbon and RO stages ahead of the DI cartridge
- Actual output varies with feed water, flow and remaining capacity; gallon figures are estimates
- No field regeneration; replace when output no longer meets your application's requirement
- For the 4-5/8" sizes, contact our team with the part number to confirm flow and service plan before ordering
- Housing not included
Shipping
- Orders of $200 or more ship free within the contiguous United States. Orders under $200 ship for a flat $9.99.
- In-stock items (shown as “In Stock” on the product page) ordered before 1:00 PM Pacific Time on a business day typically ship within 1–3 business days. Delivery usually takes 3–7 business days after shipping.
- Backorder, Partial Backorder and Custom Order items are not covered by the 1–3 business day processing time. Their estimated restock or ship time is shown in the stock status on the product page before you order.
- Large items ship by freight and are typically delivered curbside. Smaller items ship by ground carrier such as FedEx or UPS.
- We ship to the 48 contiguous states. We do not ship to Alaska, Hawaii or P.O. boxes.
- Please inspect your delivery on arrival and report any concealed damage or missing parts within 24 hours.
Returns
- Returns can be requested within 30 days of delivery. Items must be unused, uninstalled, in new resalable condition and in their original packaging, including the pallet if delivered on one.
- Approved returns are subject to a 15% restocking fee, and return shipping costs are the customer’s responsibility unless the return is the result of our error.
- Installed or used products, custom and made-to-order items, clearance or final-sale items, and replacement parts and accessories are not eligible for return.
Full Shipping Policy Full Return Policy Questions? +1 (844) 455-3695