ROT-1 is designed specifically for reverse osmosis systems, point-of-use plug and drinking systems, and coffee makers, providing safe, pure, and pressurized water delivery.
ROT-1 has a total volume of 3 liters (0.8 gallons). The tank is designed for a maximum operating pressure of 7 bar (100 psi) and a maximum operating temperature of 90 °C (194 °F). It is factory pre-charged to 0.5-0.7 bar (7-10 psi) with 100% nitrogen for stable system performance that remains unaffected by temperature fluctuations.
With a diameter of 14.0 cm (5.5 inches) and a height of 19.6 cm (7.7 inches), the compact design makes installation quick and convenient while saving space.
Product Overview
The ROT-1 is a 3-liter (0.8 gallon) diaphragm pressure tank designed for reverse osmosis (RO) drinking systems, coffee makers, and point-of-use plug systems. It securely stores purified water and delivers it into the system with controlled, robust pressure.
ROT-1 is ideal for regions and applications demanding the highest quality of clean, odor-free drinking water. Its hygienic internal design separates the stored water from the compressed gas and prevents water from making direct contact with the metal tank shell. Utilizing an FDA-approved polypropylene liner and a DIN 4807-compliant butyl rubber diaphragm, the ROT-1 ensures exceptionally safe operation, delivering cleaner, fresher, and better-tasting water while maintaining a tasteless water free zone of any rubber or plastic smells.
Manufactured with premium materials and certified by NSF58, CE, and ISO 9001, Aquasky RO tanks deliver a long service life, dependable performance, and the safest drinking-water compatibility on the market.
Certification
Specifications and Technical Data
| Parameter | Value |
| Model Number | ROT-1 |
| Total Tank Volume | 3 liters / 0.8 gallons |
| Diameter | 14 cm / 5.5 inch |
| Height | 19.6 cm / 7.7 inch |
| Net Weight (NW) | 3.9 kg / 8.6 lbs. * |
| Gross Weight (GW) | 4.5 kg / 9.9 lbs. * |
| Shipping Volume | 0.79 CUF * |
| Operating Temperature | 90°C / 194°F |
| Factory Pre-charge | 0.5 - 0.7 bar | 7 - 10 psi |
| Max. Operating Pressure | 7 bar | 100 psi |
| Connection | 1/4” NPT Stainless Steel |
| Liner Material | Polypropylene (FDA grade) |
| Diaphragm Material | Butyl Rubber (DIN 4807 compliant) |
| Shell | Cold Rolled Carbon Steel |
| External Coating | Triple Coated Liquid Paint |
| Pre-charge Gas | 100% Nitrogen |
* ROT-1 is packed 4 pcs per box.
Key Features & Design Advantages
How the RO-PLUS Pressure Tank Works
ROT-1 stores supplemental water securely between the butyl rubber diaphragm and the polypropylene liner, while the nitrogen-filled air chamber maintains constant system pressure. When a drinking tap or coffee maker is activated, the compressed nitrogen pushes the purified water into the system at a controlled pressure.
This specialized design ensures stable performance, completely separates the water from the metal shell, and maintains a clean water zone that is completely free of rubber or plastic odors.
Key benefits
Typical Applications
Frequently Asked Question (FAQ)
Yes. The ROT-1 uses a high-grade polypropylene liner and a butyl diaphragm made with FDA-approved materials, which completely prevents the water from ever making contact with the metal tank shell.
This guarantees a tasteless water zone with no rubber or plastic smells, making it perfectly safe for clean drinking water. Furthermore, the stainless steel connector is chemical-free and lead-free.
No. The ROT-1 is designed to be entirely maintenance-free during its service life. We utilize a specialized brass cap with an internal O-ring that guarantees no air loss from the air-vent.
Additionally, it is the only RO storage tank in the industry pre-charged with 100% Nitrogen, which naturally resists permeation and prevents pressure fluctuations caused by temperature changes
AQUASKY invented the leak-safe technology applied to the stainless connector 18 years ago, setting the benchmark for drinking water tanks. Manufactured in an ISO 9001:2008 registered facility and holding top-tier certifications like NSF58 and CE, it is recognized as one of the safest pressure vessels in the market.
Customized Colors & Packaging
We offer a wide range of customization options to match your exact needs - from custom colors to branded packaging and logo design.
Watch our video to explore the possibilities and see how we help your products stand out in the market.
Downloads & Certification Links
Detailed product information and data
Collection of all relevant product certifications.