ROPUR 4500A High Performance Antiscalant – 5 Gallon Pail



Learn more about RO membrane antiscalant

Water Softener versus Antiscalant injection, which is better?

Introducing RPI-4500A – the tailored solution engineered to conquer scale formation challenges in Reverse Osmosis (RO) systems. Specifically designed for feedwater primarily composed of Calcium & Magnesium with a significant presence of Silicate, RPI-4500A is your key to optimal RO system performance in diverse water conditions.

In environments where calcium carbonate-based scale poses a threat, RPI-4500A emerges as the efficient defender. This specialized formula is meticulously crafted to not only inhibit the formation of calcium carbonate scale but also to excel in environments where Calcium, Magnesium, and Silicate dominate the feedwater composition.

Why choose RPI-4500A? Its targeted design ensures a comprehensive approach to scale prevention, providing the peace of mind that your RO system will operate at peak efficiency even in the face of challenging water conditions.

Say goodbye to the worries of scale formation – RPI-4500A is here to redefine your RO system’s capabilities. Trust in its unique formulation to combat the specific challenges posed by Calcium, Magnesium, and Silicate, ensuring a robust defense against scale-related issues. Elevate your water treatment strategy with the unmatched capabilities of RPI-4500A.

Key Benefits:

Optimized Plant Recovery/Conversion Rate: ROPUR RPI® Antiscalants are meticulously formulated to maximize the efficiency of RO plants. By optimizing the recovery and conversion rates, these antiscalants contribute to the overall effectiveness of the water treatment process, ensuring that valuable resources are utilized to their full potential.

Membrane Surface Protection: One of the critical challenges in RO systems is the potential for membrane surface damage due to erosion and oxidation. RPI Antiscalants act as a robust shield, safeguarding membrane surfaces from these detrimental effects. This protection not only extends the lifespan of the membranes but also ensures consistent and reliable performance over time.

Minimized Bio-Fouling Recurrence: Bio-fouling, a common issue in water treatment systems, can lead to a decline in efficiency and increased operational costs. ROPUR RPI® Antiscalants excel in minimizing the recurrence of bio-fouling, ensuring that the RO plant operates at peak performance levels while mitigating the need for frequent maintenance and cleaning interventions.

Easy and Safe Site Handling: ROPUR RPI® Antiscalants are designed with practicality in mind. The packaging is thoughtfully crafted to facilitate easy and safe handling on-site. This feature not only streamlines the operational processes but also contributes to the overall safety of the water treatment facility, ensuring a smooth and secure handling experience for operators.


RPI-4500A is approved for use with cellulose acetate and polyamide membranes. The required dosage level ranges from 1 – 8 ppm as delivered. The dosage is proportional to the feed water flow. RPI-4500A can be used in its concentrated form or diluted with pure water in any ratio. Diluted preparations must be ideally used rapidly, within 48 hours after preparation. RPI-4500A is easy to use, safe to handle and safe to store for several months.

PACKAGING: Polyethylene canister (PE) 23.5 kg net

Technical Datasheet

Safety Datasheet

Additional information

Weight 52 lbs
Dimensions 11 × 10 × 14 in