Campden Tablets (potassium metabisulfite).  100 Tablets.

Campden tablets are also used to remove chlorine and chloramine from brewing and wine making water.

What are others saying?  Search this product’s Amazon reviews for “chloramine” – may include reviews for other sizes or variations

1/27/21 3 AM Central: These are selling for just $5.80.  Shipping is also free to many US addresses with Prime Membership [Try Prime for Free] or a qualifying order. Prices and availability can change quickly.  Check product page for current info – More About Prices

Campden Tablets (sodium metabisulfite) – 2 Oz(100 Tablets) – note that multiple variations of this product may be available, as such a different version may appear at this link

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Make sure the components you use are compatible and rated for your intended application.  Contact manufacturer with questions about suitability or a specific application.  Always read and follow manufacturer directions.