Nu-calgon 4165-24 Alkaline Drain Opener 1 Quart

Product Description

The NU-CALGON 4165-24 is an alkaline-based liquid drain opener formulated to dissolve grease, hair, vegetable matter, and other organic blockages in drain lines. The active chemistry is water and sodium hydroxide, with a specific gravity of 1.35 and a pH above 13.5. The solution is clear, odorless, and non-fuming, making it practical for use in occupied spaces where ventilation is limited. It is NSF registered, indicating it meets recognized standards for use in facilities where incidental food or water contact is a concern. HVAC technicians, plumbers, and facility maintenance professionals use this product for routine drain maintenance and emergency clogs.

This drain opener is suited for condensate drain lines, floor drains, lavatory drains, and kitchen sink lines in both residential and light commercial settings. The non-fuming formula is particularly useful in confined mechanical rooms or indoor drain access points where harsh-fume products create safety concerns. The liquid format allows direct application without mixing or dilution — pour and allow dwell time for the chemistry to work through the blockage.

Key Features

• Alkaline formula (pH above 13.5) breaks down grease, hair, and organic matter
• Non-fuming liquid — safe for use in occupied or low-ventilation spaces
• Clear, odorless appearance for clean handling
• NSF registered formulation
• Ready-to-use — no mixing or dilution required
• Specific gravity of 1.35 for effective penetration through standing water to reach blockages

Compatibility

Designed for use in standard residential and light commercial drain lines including condensate drains, floor drains, and sink lines where alkaline drain cleaners are appropriate for the pipe material.

Installation Notes

A licensed plumber or HVAC technician should assess recurring blockages before repeated chemical treatment, as underlying mechanical issues may require physical intervention. Before applying any drain opener, confirm the pipe material is compatible with high-pH alkaline solutions. Wear appropriate PPE including chemical-resistant gloves and eye protection when handling sodium hydroxide-based products, even non-fuming formulas. Follow all applicable local codes and the product safety data sheet for handling, storage, and disposal.

Technical Specifications

• Form: Liquid
• Color: Clear
• Odor: Odorless
• pH: Above 13.5
• Specific Gravity: 1.35
• Composition: Water and Sodium Hydroxide
• Container Type: Bottle
• Net Volume: 1 quart
• NSF Registered: Yes
• UNSPSC Code: 47131815

Standard Information

• Brand: NU-CALGON
• Manufacturer Part Number: 4165-24