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Four white cleaning cubes in transparent packaging

Metra 2416977 in-Tank Toilet Cleaner Duo-Cubes Alpine Fresh 4Count 16 weeks

SKU CH-M41C-QJQHB MPN 2416977

In-tank toilet cleaner cubes deliver continuous cleaning and Alpine Fresh scent with every flush for up to 16 weeks

  • Sports TeamNO
  • ColorWhite
  • FeaturesRemoves limescale
  • Continuous cleaning with every flush prevents toilet ring and limescale
  • Anti-clogging formula dissolves paper residue from tank to drain
  • Safe for toilet parts and septic systems
  • Drop-in cube with water-soluble wrapper requires no measuring
  • Four cubes deliver up to 16 weeks of fresh Alpine scent

Metra In-Tank Toilet Cleaner Duo-Cubes

The Metra 2416977 in-tank toilet cleaner comes as four Alpine Fresh Duo-Cubes that continuously clean and freshen the bowl with every flush. It fights toilet ring, hard-water deposits and limescale while helping dissolve toilet paper residue from tank to drain. The formula is safe for toilet components and septic systems, making it suitable for households that want automatic, between-cleanings freshness.

Simple drop-in installation

Each cube is wrapped in a water-soluble film that dissolves in the tank, so you only need to drop one cube in without unwrapping. The main issue is placing the cube away from the flush valve so it does not interfere with the flushing mechanism. If the cube sits directly under the fill stream it can dissolve faster and shorten the effective life of the block.

Check tank dimensions

Verify that your toilet tank has enough clearance for the cube to sit clear of moving parts such as the flapper and float. Confirm the tank holds sufficient water to keep the cube submerged between flushes for consistent release. Houses with very low-flow or dual-flush toilets should test one cube first to ensure adequate cleaning performance.

Highlights

  • Continuous cleaning with every flush prevents toilet ring and limescale
  • Anti-clogging formula dissolves paper residue from tank to drain
  • Safe for toilet parts and septic systems
  • Drop-in cube with water-soluble wrapper requires no measuring
  • Four cubes deliver up to 16 weeks of fresh Alpine scent

Specifications

Sports TeamNO
Model2416977
BrandMetra
ColorWhite
FeaturesRemoves limescale

Questions about this item

How do I know the Alpine Fresh Duo-Cube is working after I drop it in the tank?

The water-soluble wrapper dissolves and the cube releases cleaning agents with every flush, helping fight toilet ring, hard water stains and limescale continuously for up to four weeks per cube.

What comes in the Metra 2416977 package and is anything else required?

The box contains four Duo-Cubes wrapped in water-soluble film; no extra parts or tools are needed — just drop one cube into the tank.

Which version should I choose for 16 weeks of continuous cleaning?

This single 4-count pack of Alpine Fresh Duo-Cubes provides up to 16 weeks of cleaning and freshening, with each cube lasting up to four weeks.

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