Every Ultima system, with photos and spec sheets
Browse what's available, open the spec sheet, then send us your info. We'll match the right system to your water and send your price. No prices are posted here, because the right size depends on your home and your water.
Water softeners
Stop scale on fixtures, glass, the water heater and appliances.
Ultima 5800 Water Softener — 1" Demand-Metered Valve
A whole-house softener that regenerates only when your family actually uses water, instead of on a fixed timer, so it wastes less salt and water.
Ultima 56 SXT Water Softener
A softener built on a valve platform with a long track record, for households that want simple, reliable operation.
Ultima 5600 Water Softener — Mechanical Valve
A fully mechanical softener valve with no circuit board, which makes it a good fit for outdoor closets, garages, or other harsh spots where electronics tend to fail first.
Ultima 9100 SXT Water Softener
A demand-metered softener sized for larger households, so it delivers more flow with less pressure drop than a small single-tank unit.
Ultima WS1 Water Softener — 1" Digital Demand Valve
A digitally controlled softener that only regenerates based on your household’s real water use, and keeps its programming even through a power outage.
Ultima Spacesaver Cabinet Water Softener
An all-in-one cabinet softener for homes where a separate brine tank won’t fit — the resin tank and salt tank share one footprint.
Ultima Twin Tank Water Softener
A twin-tank softener for households or small commercial kitchens that can never run out of soft water, even mid-regeneration.
Ultima WS1.25 Water Softener — 1.25" Digital Demand Valve
A larger-flow version of Ultima’s digital demand softener, for bigger homes that want the same low-maintenance programming.
Ultima RB Series Water Softener
An adaptable softener platform with a built-in service alarm and extra auxiliary ports for homes with specific plumbing or monitoring needs.
Ultima Green Softener — Low-Salt Water Softener
A standard salt-based softener built around a uniform-bead resin and a smart control valve, aimed at cutting salt and water use for Arizona’s hard water without giving up softening power.
Ultima Green Fusion — Combination Softener & Whole-House Filter
A single-tank system that softens your water and filters it at the same time, so you don’t need a separate softener and whole-house filter.
Whole-house carbon filters
Take chlorine and chloramine taste and smell out of every tap and shower.
Ultima WS1 Whole Home Carbon Filter System
A whole-house carbon filter that treats every tap in the home, cutting the chlorine and sediment that a point-of-use filter never touches.
Ultima 5600 Whole Home Carbon Filter System
A whole-house carbon filter built on the 5600 valve platform, treating every tap in the home for chlorine, sediment, and other municipal-water byproducts.
Ultima WS1.25 Whole Home Carbon Filter
A larger-flow whole-house carbon filter for bigger homes, treating every tap for chlorine, sediment, and other municipal-water byproducts.
Filter systems
Big Blue whole-house housings, under-sink and quick-change filters.
Ultima 1-Stage Big Blue Filter System
A single-cartridge whole-house filter housing for handling high flow and heavy sediment, built for a broad range of chemical removal jobs.
Ultima 2-Stage Big Blue Filter System
A 2-cartridge whole-house filter housing for handling high flow and heavy sediment, built for a broad range of chemical removal jobs.
Ultima 3-Stage Big Blue Filter System
A 3-cartridge whole-house filter housing for handling high flow and heavy sediment, built for a broad range of chemical removal jobs.
Ultima 2 Filter System — Slimline Under-Sink Filter
A compact 2-stage under-sink filter for households that want sediment and chlorine taste/odor reduction without a full RO system.
Ultima 3 Filter System — Slimline Under-Sink Filter
A 3-stage version of Ultima’s Slimline under-sink filter, adding a final polishing cartridge for households that want the extra taste pass.
Ultima Ult-QC 2 Stage Filter System
A compact point-of-use filter for a single tap, ice machine, or beverage line — built to cut sediment, chlorine taste, and odor before the water reaches the fixture.
Ultima Ult-QC 3 Stage Filter System
A compact point-of-use filter for a single tap, ice machine, or beverage line — built to cut sediment, chlorine taste, and odor before the water reaches the fixture.
Ultima Ult-QC 3 Stage Filter System w/ Scale Red
A compact point-of-use filter for a single tap, ice machine, or beverage line — built to cut sediment, chlorine taste, and odor before the water reaches the fixture.
Reverse osmosis drinking water
Bottled-quality water at the kitchen tap.
Ultima VII 5-Stage Reverse Osmosis Drinking Water System
A full 5-stage under-sink reverse osmosis system for households that want the extra polishing stage on top of standard RO filtration.
Ultima VI 4-Stage Reverse Osmosis Drinking Water System
A space-saving 4-stage reverse osmosis system for kitchens that want RO-quality water without the room a 5-stage cabinet needs.
Ultima Green RO 5-Stage Reverse Osmosis System
A water-saving reverse osmosis system that discards far less water down the drain than a conventional RO unit, while still producing the same great-tasting drinking water.
Ultima Green RO 4-Stage Reverse Osmosis System
A 4-stage version of Ultima’s water-saving Green RO line — the newer membrane technology needs one fewer stage than a standard 5-stage RO system while producing the same water quality.
Ultima Green 150 GPD Reverse Osmosis System
A higher-capacity Green RO system for small businesses — ice machines, food and beverage prep, labs, and greenhouses — that need more filtered water per day than a household unit provides.
Ultima Alkalizer RO System — 5-Stage Alkaline Reverse Osmosis
A reverse osmosis drinking water system that adds healthy minerals back after filtering, for great-tasting alkaline water at the tap.
Salt-free conditioners
Scale control with no salt and no drain line.
Ultima Green NAC — No-Salt Water Conditioner
A no-salt water conditioner for homes that want less scale buildup without adding salt, brine discharge, or an electrical hookup.
Ultima Green NAC Stacked — No-Salt Water Conditioner
A larger, stacked configuration of Ultima’s no-salt conditioner for homes that need more capacity than the standard single-tank Green NAC.
Commercial reverse osmosis
High-volume RO for businesses, car washes, misting and process water.
Commercial softeners
Continuous soft water for restaurants, offices and light commercial.
Replacement filters & membranes
Cartridges, RO filter packs and membranes for Ultima systems.
Ultima Replacement Carbon Block Filter
A drop-in carbon block replacement cartridge for Ultima filter housings, sized to fit standard 10 in. and 20 in., and 2.5 in. or 4.5 in. (Big Blue) housings.
Ultima Replacement GAC (Granular Activated Carbon) Filter — 2.5 x 10 in.
A loose-fill granular activated carbon cartridge that fits standard 2.5 x 10 in. housings, for chlorine taste and odor reduction.
Ultima 2.5 x 10 in. Melt-Blown Sediment Filter
A melt-blown polypropylene sediment cartridge for standard 2.5 x 10 in. housings, catching dirt and sand before it reaches the rest of your filtration.
Ultima 2.5 x 20 in. Melt-Blown Sediment Filter
A longer melt-blown polypropylene sediment cartridge for standard 2.5 x 20 in. housings, for higher-capacity sediment filtration.
Ultima 4.5 x 10 in. Big Blue Dual-Gradient Sediment Filter
A dual-gradient sediment cartridge for 4.5 x 10 in. Big Blue housings — coarser media up front and finer media downstream, in a single cartridge, for longer life under heavier sediment loads.
Ultima 4.5 x 20 in. Big Blue Dual-Gradient Sediment Filter
A longer dual-gradient sediment cartridge for 4.5 x 20 in. Big Blue housings, giving higher dirt-holding capacity for whole-house sediment control.
Ultima Replacement RO Filter Pack
A full set of pre- and post-membrane replacement cartridges for your Ultima RO system’s annual service, sized to match your system’s stage count.
Ultima Inline Carbon Filter
A compact inline carbon cartridge for RO systems, ice machines, and other point-of-use lines that need a quick chlorine-taste polish without a full housing.
Ultima 2.5 x 12 in. Inline Sediment Filter
A compact inline sediment cartridge for RO systems and other point-of-use lines that need dirt and grit removal without a full filter housing.
Ultima Replacement RO Membrane
A replacement thin-film composite RO membrane sized to match your Ultima reverse osmosis system’s daily production rate.
Parts & replacement filter catalogs
Part numbers for cartridges, membranes, housings, tanks and valves. Send us the part number and we'll quote it.
Not sure which one fits?
Take the 2-minute water quiz, or send us your info and we'll match a system to your water.