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IsoTwist Green Reverse Osmosis System with Revtex 4-Stage: Eco-Friendly Water-Saving Filtration for Clean Home Hydration | ISO-450RG

Regular price $442.99 USD
Regular price Sale price $442.99 USD
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IsoTwist Green with Revtex® 1:1 membrane Sends less water to the drain

The Vertex The Vertex IsoTwist® Green models are 4 (ISO-450RG) and 5-stage undersink Reverse Osmosis filter systems that use the new Revtex 1:1 high-efficiency 50 GPD RO membrane to send less water to the drain – only 1 gallon of water is wasted for each gallon of fresh-water produced. The improved membrane design and special membrane material make this 50% recovery rate possible at typical municipal water pressure of 40-100 psi. The proprietary twist-off filter cartridges have double O-ring seal fittings to ensure a snug fit at each filter change and prevent leaks. The disposable filter cartridges and RO membrane assembly are designed to make installation and replacement quick, easy and sanitary. The Twist-off filters are great for large service programs or for customers who like to do the filter replacement themselves.

Choose the 5-stage system to ensure water quality, membrane performance and filter life, when the incoming water contains a high amount of sediment as in some well water systems. An extra pre-filter stage is added before the membrane. The 5-stage model can also be used to extend time between filter changes.

The IsoTwist® Green comes complete and ready to install, with quick connect fittings, 3/8″ tank to faucet tubing, dispensing faucet and instruction manual.

• Revtex 1:1 sends 4x less water to the drain*
• Revtex 1:1 membrane fits standard membrane housings
• Proprietary twist-off filter cartridges
• Quick connect O-ring seal fittings
• Compact size takes less space than most 4 and 5-stage systems
• Auto shutoff valve
• Flow restrictor – modified capillary
• Long reach, non-airgap chrome faucet included
• 4.0 gallon plastic tank
• Feed water connector-1/2 inch threaded inlet adapter with metal ballvalve
• Drain connection included
• 1/4 Inch John Guest polyethylene tubing

Product Details

IsoTwist Green with Revtex 4 stage from Vertex & Aloha Pure Water is a water filtration component designed to help keep your everyday water clearer, better-tasting, and easier to trust—whether you’re filling a glass, cooking dinner, or rinsing off after a long day in the Antelope Valley.
This component plays an important role in your home’s filtration setup, supporting home water protection and maintenance so your family can stay confidently hydrated without having to think about the technology working behind the scenes.
Like every solution we recommend, it reflects our education-first approach: simple to understand, straightforward to service, and chosen to balance performance, reliability, and long-term value.

Why families choose this product:
- Supports fresher, better-tasting water for home water protection and maintenance
- Pairs with existing equipment for a smooth upgrade or replacement
- Selected for families who want both protection and peace of mind

Technical Specifications

Key specifications for IsoTwist Green with Revtex 4 stage:
- Product type: water filtration component
- Ideal use: home water protection and maintenance
- Installation: See system manual or contact Aloha Pure Water for guidance.
- Maintenance: Follow your recommended service schedule or subscribe for reminders and replacement kits.
- Dimension:
- 14”W x 6”D x 15.5”H
- Tank: 11″ dia. x 15.5″H

Awards and Certifications