Pure-water systems & filters, compared
Every pure-water systems & filters product we list, side by side, ordered by pure water per fill. Specs come from each maker’s own page, never from a marketplace listing. Open a product for our review and the link to buy it.
| Product | Stages | Pure water per fill (gal) | Resin volume (cu ft) | TDS meter | Connection | Tier | What it doesn’t include |
|---|---|---|---|---|---|---|---|
| CR Spotless DIC-20 High Output Rolling DI System | 300 gal | Yes | PVC hose quick-connectors | Mid | |||
| Spotless DIW-20 Deionized Water System | 300 gal | Yes | PVC hose quick-connectors | Mid | |||
| Unger HydroPower Ultra DI Filter (1-Stage, Filter S) | 188 gal | 0.21 cu ft | Yes | Quick-fit metal hose connector | Pro | ||
| WaterSentinel SF-20W Inline Spot-Free DI Filter | 40 gal | Entry | |||||
| HM Digital DM-1 Dual In-Line TDS Monitor | Yes | 1/4 in quick-connect fittings (SP-3, included) | Mid | ||||
| HM Digital TDS-3 Handheld TDS Meter | Entry | ||||||
| Pre-Filled DI Resin Water System with Garden Hose Connector | Mid | XERO's DI tank is sold only through WindowCleaner.com. This is a smaller-capacity pre-filled tank, so resin life is shorter — adjust any resin-life figures accordingly. | |||||
| Tucker H2Pro 3-Stage RO/DI System | 3 | Pro | IPC Eagle is dealer-only and not sold on Amazon. This is the closest cart-mounted equivalent, but it is 3-stage, not 4. | ||||
| Virgin Mixed-Bed DI Resin (1/2 or 1 cu ft bag) | 1 cu ft | Mid | |||||
| XERO Pure 3-Stage RO/DI System | 3 | Yes | Pro | ||||
| XERO Pure Package with Pro Pole 30 ft | 3 | Yes | Pro | Tucker's 4060 kit is distributor-only. This is the closest complete pole-plus-RO/DI package sold on Amazon. |
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