Rhomar Pro-tek 922 Corrosion Scale Inhibitor 1 Gallon

Product Description

The RHOMAR pro-tek 922 is a liquid corrosion and scale inhibitor formulated for closed-loop hydronic and hot-water heating systems. It protects copper, brass, aluminum, and steel from corrosion while controlling scale formation that reduces heat transfer efficiency. The inhibitor helps maintain system pH within an acceptable operating range and is safe for use with standard PEX, PEX-Al-PEX, and rubber tubing. It does not contain nitrite, making it a cleaner option for systems where nitrite-free chemistry is required. Licensed HVAC technicians and plumbers working on boiler-based heating systems are the primary installers and service professionals for this product.

pro-tek 922 is intended for hot-water, closed-loop heating systems in residential and light commercial applications. It is compatible with both inhibited and uninhibited propylene glycol and ethylene glycol mixtures, and it boosts the corrosion protection already present in pre-inhibited glycol blends. Typical applications include hydronic boiler loops, radiant floor heating circuits, and fan coil systems where copper, brass, aluminum, or steel components are present. The product is packaged in a 1-gallon container for single-system treatments or top-off service calls.

Key Features

• Inhibits corrosion on copper, brass, aluminum, and steel surfaces
• Controls scale formation to maintain heat transfer efficiency
• Helps maintain system pH balance in closed-loop circuits
• Compatible with inhibited and uninhibited propylene and ethylene glycol mixtures
• Safe for use with PEX, PEX-Al-PEX, and rubber tubing
• Nitrite-free formula; environmentally friendly

Compatibility

Designed for use in hot-water, closed-loop heating systems incorporating copper, brass, aluminum, and steel components. Compatible with standard PEX, PEX-Al-PEX, and rubber tubing, as well as inhibited or uninhibited propylene and ethylene glycol mixtures.

Installation Notes

This product is typically added to a closed-loop hydronic system by a licensed HVAC technician or plumber. Before servicing or adding chemical treatment, shut down the boiler and allow the system to cool to a safe handling temperature. Follow the system manufacturer's dosing guidelines and local mechanical codes when introducing chemical additives to a pressurized loop. Always verify compatibility with existing fluid chemistry before mixing with other inhibitors or treatments.

Technical Specifications

• Type: Corrosion and Scale Inhibitor
• Application: Hot-Water, Closed-Loop Heating Systems; Copper, Brass, Aluminum, Steel
• Container Size: 1 gallon
• Container Type: Can
• Glycol Compatibility: Inhibited and uninhibited propylene glycol and ethylene glycol mixtures
• Tubing Compatibility: PEX, PEX-Al-PEX, rubber tubing
• Nitrite Content: None

Standard Information

• Brand: RHOMAR
• Manufacturer Part Number: pro-tek 922