Looking Beyond the Premier Water Systems Oceanic Commercial Grade Reverse? 6 Alternatives Worth a Look
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The Premier Water Systems Oceanic Commercial Grade Reverse Osmosis System offers high-volume filtration for light commercial settings. It produces 800 gallons per day with a 1:1 pure to drain ratio. The unit includes a booster pump and a 20-gallon storage tank on a stainless steel frame. These specs support steady output for restaurants or bars.
You might look for premier water systems oceanic commercial grade reverse alternatives if you need different dimensions or features. Some businesses require tankless designs to save space. Others prioritize lower waste ratios or deionization stages for specialized water purity. This list compares 6 systems that share the 800 GPD capacity or similar commercial use cases. We selected these options because their published specifications overlap with the Oceanic system’s core requirements. Each alternative provides a distinct combination of flow rate, footprint, and filtration stages. Review the specs to find the best fit for your facility.
Our top pick: Oceanic 800 GPD Commercial RO System.
How each alternative compares
Oceanic 800 GPD RO/DI System
The Oceanic 800 GPD RO/DI System matches the Oceanic 800 GPD Commercial RO System in daily output but adds deionization. This extra stage removes ions for near-zero TDS water, which the standard model does not provide. You gain ultra-pure water for aquariums or labs, but you lose the included 20-gallon storage tank. The unit is tankless, requiring you to manage your own storage or use it for immediate demand. It is slightly narrower but weighs more than the original. Choose this if your priority is chemical purity over volume storage.
Oceanic 600 GPD Commercial RO/DI
The Oceanic 600 GPD Commercial RO/DI offers lower daily capacity than the 800 GPD original, producing 600 gallons per day. Like the premium alternative, it includes deionization for high-purity output. It is tankless, so you must handle storage separately. The unit is heavier at 65 pounds and slightly longer than the original. It fits users who need consistent pure water without tank constraints. If you require deionization but can accept lower daily volume, this is a practical choice. It suits labs or aquariums where water quality matters more than maximum daily throughput.
iSpring RCB3P 300 GPD Tankless RO
The iSpring RCB3P 300 GPD Tankless RO System produces less water daily than the 800 GPD original. It is designed for under-sink installation, saving floor space compared to the freestanding Oceanic unit. It includes a booster pump for pressure support. The tankless design means you do not get a storage tank, requiring you to provide your own if needed. It is compact and fits well in offices or salons. Choose this if you have limited space and do not need high-volume output. It is ideal for light commercial use where steady flow is sufficient.
Ecoviva RO800G Tankless 9-Stage RO
The Ecoviva RO800G Tankless 9-Stage RO matches the original in daily capacity but uses a tankless design. It features a 3:1 pure to drain ratio, which is less efficient than the Oceanic 800 GPD Commercial RO System's 1:1 ratio. This means more water waste during filtration. It includes an alkaline filter for pH adjustment, which the original does not. The unit is smaller and lighter, fitting under sinks or in tight spaces. Choose this if you prioritize space savings and pH balance over water efficiency. It suits users who want alkaline water without a large storage tank.
Premier LC400-2520-BP 400 GPD Light Commercial RO
The Premier LC400-2520-BP 400 GPD Light Commercial RO produces half the daily volume of the 800 GPD original. It is tankless, requiring you to manage storage separately. It includes a booster pump for consistent pressure. The unit is blue and slightly smaller than the original stainless steel frame model. It fits cafes or labs needing steady flow without high capacity. Choose this if you need lower output and can accommodate a separate tank. It is a reliable option for light commercial spaces where 400 gallons per day is sufficient.
Premier 400 GPD Light Commercial RO
The Premier 400 GPD Light Commercial RO offers the same capacity as the LC400-2520-BP but may differ in specific model details. It produces 400 gallons per day, half the output of the 800 GPD original. It is tankless, so you must provide your own storage. It includes a booster pump for pressure support. This model suits businesses that need steady flow without high volume. It is a solid choice for cafes or offices where 400 gallons per day is adequate. Choose this if you prefer Premier branding and do not need the higher capacity of the Oceanic system.
Quick picks
Our 7 picks
Oceanic 800 GPD Commercial RO System
Best for: Light commercial high-volume water needs
- Capacity (GPD)
- 800 GPD
- Pure to Drain Ratio
- 1:1
- Installation Type
- Freestanding
- Features
- Booster Pump
- Use
- Light Commercial
View on Amazon: Oceanic 800 GPD Commercial RO System Affiliate link
This Premier Water Systems unit delivers 800 gallons per day with a 1:1 pure-to-drain ratio. It includes a booster pump and a 20-gallon storage tank. The freestanding stainless steel frame supports light commercial use. You get high-capacity filtration for restaurants or bars. The system removes up to 99% of contaminants. It suits businesses needing reliable, high-volume water output.
Pros
- 800 GPD capacity for high-volume needs
- 1:1 pure-to-drain water ratio
- Includes booster pump for pressure support
- 20-gallon commercial-grade storage tank
Cons
- Large 20-gallon tank requires significant floor space
- Freestanding design needs dedicated area
- No mention of tankless compact design
Good fit if
- You run a restaurant or bar
- You need 800 gallons of water daily
- You have space for a freestanding unit
Skip if
- You want a tankless under-sink system
- You have limited counter or floor space
- You need a compact residential setup
Verdict: Premier Oceanic 800 GPD RO System fits businesses needing high-volume water. It works well for restaurants with space for a freestanding unit.
Oceanic 800 GPD RO/DI System
Best for: high-volume pure water needs
- Capacity (GPD)
- 800 GPD
- Design
- Commercial
- Filtration Type
- Reverse Osmosis + Deionization (RO/DI)
- Contaminants Removed
- 99% contaminants, 0 TDS
- Features
- Booster pump
- Use
- Light Commercial
View on Amazon: Oceanic 800 GPD RO/DI System Affiliate link
This Oceanic unit combines reverse osmosis with deionization to produce ultra-pure water. It reaches 800 gallons per day and includes a built-in booster pump to maintain pressure. The system removes 99% of contaminants, targeting 0 TDS. Its commercial design measures 12 by 16 by 36 inches. You should consider this if you need high-volume pure water for labs, aquariums, or light commercial tasks.
Pros
- 800 GPD production capacity
- RO/DI dual filtration stage
- Built-in booster pump
- Targets 0 TDS output
Cons
- Large 35-pound footprint
- No integrated storage tank listed
- Requires dedicated space for commercial build
Good fit if
- You need 800 gallons of pure water daily
- You require 0 TDS for aquariums or labs
- You have space for a commercial-sized unit
Skip if
- You need a compact under-sink solution
- You lack space for a 36-inch tall system
- You only need standard drinking water purification
Verdict: Oceanic RO/DI 800 GPD Commercial System delivers high-volume ultra-pure water for specialized needs. It fits users who need 0 TDS output for aquariums or light commercial use.
Oceanic 600 GPD Commercial RO/DI
Best for: high-volume pure water needs
- Capacity (GPD)
- 600 GPD
- Design
- Commercial
- Filtration Type
- Reverse Osmosis + Deionization (RO/DI)
- Contaminants Removed
- 99% contaminants, 0 TDS
- Features
- Booster pump
- Capacity
- 800 GPD
View on Amazon: Oceanic 600 GPD Commercial RO/DI Affiliate link
This Oceanic unit combines reverse osmosis with deionization to produce ultra-pure water. It delivers 600 gallons per day with a built-in booster pump for consistent pressure. The system removes 99% of contaminants for 0 TDS output. Its commercial design measures 12 by 18 by 36 inches and weighs 65 pounds. It suits aquariums, labs, and light commercial settings needing high-volume pure water.
Pros
- RO/DI filtration for 0 TDS output
- 600 GPD production capacity
- Built-in booster pump
- Removes 99% of contaminants
Cons
- Heavy 65-pound build
- Large 36-inch height
- No storage tank included
Good fit if
- You need ultra-pure 0 TDS water
- You require high daily production
- You have space for a commercial unit
Skip if
- You need a compact under-sink system
- You prefer a lightweight unit
- You want a simple RO-only setup
Verdict: Oceanic Commercial RO/DI System 600 GPD delivers industrial-grade purity for heavy users. It fits aquariums and labs that need consistent, tankless pure water without storage constraints.
iSpring RCB3P 300 GPD Tankless RO
Best for: Light commercial spaces needing compact high output
- Capacity (GPD)
- 300
- Design
- Under sink, tankless
- Pure to Drain Ratio
- 1.5:1
- Filtration Type
- Reverse osmosis
- Installation Type
- Under sink
- Micron Rating
- 0.0001
View on Amazon: iSpring RCB3P 300 GPD Tankless RO Affiliate link
This tankless reverse osmosis system delivers 300 gallons per day with a 1.5:1 pure-to-drain ratio. The stainless steel frame protects the unit, while the built-in booster pump raises water pressure for higher output. It reduces over 1,000 contaminants down to 0.0001 microns. You get a compact under-sink design that fits light commercial spaces like offices or salons. The system requires a separate storage tank for daily use.
Pros
- 300 GPD production rate
- 1.5:1 pure-to-drain ratio
- Built-in booster pump
- Stainless steel frame
Cons
- Tank not included
- Heavy at 52 pounds
- Requires separate storage tank
Good fit if
- You need high output in a small space
- You want a durable metal frame
- You have low water pressure
Skip if
- You need an included storage tank
- You prefer a lighter unit
- You want a simpler installation
Verdict: The iSpring RCB3P 300 GPD Tankless RO System fits light commercial users who need steady output and durable construction. It works best for offices or salons with limited under-sink space.
Ecoviva RO800G Tankless 9-Stage RO
Best for: high-volume light commercial and office use
- Filtration Stages
- 9
- Capacity (GPD)
- 800
- Design
- Tankless
- Pure to Drain Ratio
- 3:1
- Certification
- NSF/ANSI 58, 53, 42, 61, 372
- Filtration Type
- Reverse osmosis, alkaline
View on Amazon: Ecoviva RO800G Tankless 9-Stage RO Affiliate link
The Ecoviva RO800G is a tankless reverse osmosis system rated for 800 gallons per day. It features a 3:1 pure-to-drain ratio, which reduces water waste compared to standard units. The unit includes nine filtration stages and holds NSF/ANSI certifications for safety and material quality. Its compact, sealed design fits under sinks and operates quietly. This system suits users who need high-volume water without the bulk of a storage tank.
Pros
- 800 GPD tankless capacity for on-demand water
- 3:1 pure-to-drain ratio for water efficiency
- NSF/ANSI 58, 53, 42, 61, and 372 certified
- Nine-stage filtration with alkaline boost
- Compact sealed design reduces noise and vibration
Cons
- Requires a nearby electrical outlet for the LED faucet
- Heavier build at 22.4 pounds
- No mention of smart app connectivity or remote monitoring
Good fit if
- You need high-volume water for commercial or light commercial use
- You want to minimize water waste with a 3:1 ratio
- You prefer a tankless design to save cabinet space
Skip if
- You do not have access to an electrical outlet under the sink
- You require a system with fewer than 800 GPD capacity
- You need a unit that operates entirely without electricity
Verdict: The Ecoviva RO800G Tankless 800 GPD RO System delivers efficient, high-volume filtration for businesses or heavy households. Its certified membranes and tankless design make it ideal for users prioritizing water conservation and space savings.
Premier LC400-2520-BP 400 GPD Light Commercial RO
Best for: Light commercial spaces needing steady flow
- Capacity (GPD)
- 400 GPD
- Design
- Tankless
- Installation Type
- Under sink, tankless
- Features
- Booster pump
- Use
- Light Commercial
- Color
- Blue
View on Amazon: Premier LC400-2520-BP 400 GPD Light Commercial RO Affiliate link
This Premier system delivers 400 gallons per day using a tankless design with a built-in booster pump. It uses oversized 20-inch pre-filters for extended life and handles feed water pressure between 22 and 95 psi. The unit measures 12 by 18 by 36 inches and weighs 38 pounds. It suits light commercial environments like cafes or labs where steady output matters more than stored volume.
Pros
- 400 GPD capacity for high daily demand
- Built-in booster pump optimizes water pressure
- Oversized 20-inch filters last longer than standard 10-inch ones
- Tankless design saves space under the sink
Cons
- Requires a compatible pressurized storage tank for storage
- Tank is not included with the system
- Heavier and bulkier than compact residential units
Good fit if
- You need higher output than standard 100 GPD systems
- You want to reduce plastic bottle waste
- You have space for a separate storage tank
Skip if
- You prefer a complete kit with the tank included
- You have very limited under-sink space
- You only need water for personal drinking
Verdict: Premier Light Commercial RO 400 GPD provides reliable output for small businesses. It fits cafes or labs that need steady flow and can accommodate a separate tank.
Premier 400 GPD Light Commercial RO
Best for: Light commercial spaces needing 400 GPD with pressure boost
- Capacity (GPD)
- 400
- Filtration Type
- Reverse osmosis
- Installation Type
- Light commercial
- Features
- Booster pump
- Capacity
- 400 GPD
- Design
- Tankless
View on Amazon: Premier 400 GPD Light Commercial RO Affiliate link
This Premier system delivers 400 gallons per day of reverse osmosis water, making it suitable for light commercial environments like cafes or offices. It includes a built-in booster pump to maintain optimal pressure for production. The unit uses oversized 20-inch pre-filters, which offer a capacity of up to 30,000 gallons, double the standard 10-inch size. It is designed for feed water pressures between 22 and 95 psi.
Pros
- Produces 400 gallons of purified water daily
- Built-in booster pump raises water pressure for better output
- Oversized 20-inch pre-filters provide up to 30,000 gallons of filtered water
- Compatible with most pressurized storage tanks
Cons
- Includes only reverse osmosis filtration without additional stages like deionization
- Requires a separate pressurized storage tank for operation
- Tank is not included in the package
Good fit if
- You need a high-capacity system for light commercial use
- You have low incoming water pressure and need a booster pump
- You want longer-lasting pre-filters with 20-inch cartridges
Skip if
- You require a tankless design for immediate water access
- You need deionization for ultra-pure water applications
- You want a complete kit with an included storage tank
Verdict: Premier Light Commercial RO 400 GPD with Booster Pump is a solid choice for businesses needing 400 GPD with pressure support. It suits cafes or offices that can accommodate a separate tank and do not need deionization.
Specifications side by side
| Spec | Oceanic 800 GPD Commercial RO System | Oceanic 800 GPD RO/DI System | Oceanic 600 GPD Commercial RO/DI | iSpring RCB3P 300 GPD Tankless RO | Ecoviva RO800G Tankless 9-Stage RO | Premier LC400-2520-BP 400 GPD Light Commercial RO | Premier 400 GPD Light Commercial RO |
|---|---|---|---|---|---|---|---|
| Filtration Stages | not stated | not stated | not stated | not stated | 9 | not stated | not stated |
| Capacity (GPD) | 800 GPD | 800 GPD | 600 GPD | 300 | 800 | 400 GPD | 400 |
| Design | not stated | Commercial | Commercial | Under sink, tankless | Tankless | Tankless | not stated |
| Pure to Drain Ratio | 1:1 | not stated | not stated | 1.5:1 | 3:1 | not stated | not stated |
| Certification | not stated | not stated | not stated | not stated | NSF/ANSI 58, 53, 42, 61, 372 | not stated | not stated |
| Filtration Type | not stated | Reverse Osmosis + Deionization (RO/DI) | Reverse Osmosis + Deionization (RO/DI) | Reverse osmosis | Reverse osmosis, alkaline | not stated | Reverse osmosis |
| Contaminants Removed | not stated | 99% contaminants, 0 TDS | 99% contaminants, 0 TDS | not stated | not stated | not stated | not stated |
| Installation Type | Freestanding | not stated | not stated | Under sink | Under sink | Under sink, tankless | Light commercial |
| Features | not stated | Booster pump | Booster pump | not stated | not stated | Booster pump | Booster pump |
| Micron Rating | not stated | not stated | not stated | 0.0001 | not stated | not stated | not stated |
| Capacity | 800 GPD | 800 GPD | 800 GPD | 300 GPD | 800 GPD | 400 GPD | 400 GPD |
| Use | Light Commercial | Light Commercial | Light Commercial | Light Commercial | Light Commercial | Light Commercial | Light Commercial |
| Color | White, Blue | not stated | not stated | Blue | not stated | Blue | not stated |
| Dimensions | not stated | 16 × 12 × 36 inches | 18 × 12 × 36 inches | 19.5 × 11 × 28 inches | 17.1 × 6.5 × 18.8 inches | 18 × 12 × 36 inches | not stated |
| Weight | not stated | 35 pounds | 65 pounds | 52 pounds | 22.4 pounds | 38 pounds | not stated |
| Size | not stated | 800 GPD | 600 GPD | 300 GPD RO Tankless | RO 800GPD | not stated | not stated |
| Model | not stated | not stated | not stated | RCB3P | EV-WP-URO800G | LC400-2520-BP | Premier RO BP 400 |
If you also compare heavy weight office specifications, serta morrisen 400lb commercial grade alternatives provide comparable capacity data.
Frequently asked questions
Which system produces the most pure water per day?
Several models in this list share the highest output capacity. The Oceanic 800 GPD Commercial RO System and the Oceanic 800 GPD RO/DI System both deliver 800 gallons daily. The Ecoviva RO800G also provides 800 GPD. These units suit businesses requiring high-volume water for heavy use or large staffs.
Are tankless designs available for light commercial use?
Yes, tankless options are available for commercial settings. The iSpring RCB3P and the Premier LC400-2520-BP both feature tankless designs. These systems provide steady output without needing a separate storage tank. This design saves space in offices or salons where under-sink room is limited.
Which alternative includes deionization for ultra-pure water?
Two models include deionization stages for specialized needs. The Oceanic 800 GPD RO/DI System and the Oceanic 600 GPD Commercial RO/DI both add this feature. Deionization removes ions to achieve near-zero TDS water. This output is ideal for aquariums or labs requiring high purity.
Do these systems require a booster pump?
Most listed models include a booster pump to enhance pressure. The Oceanic 800 GPD Commercial RO, the Oceanic RO/DI models, the iSpring RCB3P, and the Premier LC400-2520-BP all feature this component. The pump ensures consistent flow rates even if incoming water pressure is low.
Which system has the best water efficiency ratio?
The Ecoviva RO800G Tankless 9-Stage RO offers a 3:1 pure to drain ratio. This design reduces waste compared to standard 1:1 systems. It is suitable for users prioritizing water conservation in light commercial or office environments while maintaining high daily output volumes.
What is the smallest footprint among these options?
The Ecoviva RO800G has the most compact dimensions. It measures 6.5 inches wide and 18.8 inches high. This slim profile fits easily into tight spaces. Other models like the Oceanic 800 GPD RO/DI are wider at 12 inches and taller at 36 inches.
Which unit is heaviest and requires sturdy support?
The Oceanic 600 GPD Commercial RO/DI is the heaviest unit listed. It weighs 65 pounds and measures 18 inches in length. Its substantial weight suggests it needs a stable, level surface for installation. Lighter options like the Ecoviva weigh only 22.4 pounds.
Are there NSF certified membranes in these systems?
The Ecoviva RO800G explicitly lists NSF Certified membranes. This certification indicates the filter components meet specific safety and performance standards. Other models do not mention certification in their provided data, so you should verify this detail directly with the manufacturer if it is critical for your use case.