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Clear 32 oz bottle of Nu-Calgon liquid drain opener

Nu-Calgon

Nu-Calgon 4165-24 Liquid Drain Opener 32 oz Unscented

SKU CH-41Y9-RBJA5

Liquid drain opener clears HVAC condensate drains, sinks and bathtubs in up to 30 minutes with a ready-to-use 32 oz formula safe for septic systems and garbage disposals

  • ColorClear
  • Ready-to-use formula clears clogs in 30 minutes
  • 32 oz bottle treats HVAC condensate drains and sinks
  • Safe for metal and plastic pipes without damage
  • Unscented liquid leaves no fragrance residue behind
  • NSF-rated and septic-safe for household plumbing systems

Ready-to-Use Drain Opener for HVAC

Nu-Calgon 4165-24 is a clear, unscented liquid drain opener supplied in a 32 oz bottle. It is formulated for HVAC condensate drains, sinks and bathtubs and is safe for septic systems and garbage disposals. The product carries an NSF rating and requires no dilution before use.

Clears Blockages Within a 30 Minute Maximum Set Time

The liquid works on metal and plastic pipe materials and has no flash point. It is biodegradable-free and designed to dissolve obstructions within a maximum set time of 30 minutes. Each bottle delivers a maximum ready-to-use yield of 32 fl oz for a single application.

32 oz Bottle Decides Coverage for One Job

The 32 oz container size determines how many drains can be treated from a single bottle. Buyers needing to clear multiple or larger lines will require additional units. The fixed volume makes it straightforward to match the product to the specific cleaning task.

Highlights

  • Ready-to-use formula clears clogs in 30 minutes
  • 32 oz bottle treats HVAC condensate drains and sinks
  • Safe for metal and plastic pipes without damage
  • Unscented liquid leaves no fragrance residue behind
  • NSF-rated and septic-safe for household plumbing systems

Specifications

ColorClear
BrandNU-CALGON

Questions about this item

One 32 oz bottle or the 24 pack — which suits a single slow drain?

One 32 oz bottle treats one drain; the 24 pack is for multiple jobs or routine maintenance.

What does the 30 minute set time mean when I pour it in?

Let the liquid sit in the drain for up to 30 minutes, then flush with water to clear the blockage.

Is the NSF rating a plumbing code requirement or a safety mark?

NSF Rated means the formula meets NSF standards for use in food‑zone and general plumbing systems.

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