97% sulphuric acid - one of the strongest liquid drain cleaners available Ready-mixed formula - use straight from the bottle, no dilution needed Clears blocked sinks, drains and toilets quickly Destroys grease, hair, fat, soap and organic matter in minutes Safe on pipes when dosage instructions are followed Use 100ml for sinks, 250ml for toilets and floor drains Also suitable for monthly preventative maintenance - 100ml per drain 1 litre bottle provides multiple applications Douglas Instant Drain Cleaner for Sinks, Drains and Toilets A Concentrated Formula for Stubborn Blockages: Douglas Instant Drain Cleaner contains 97% sulphuric acid, making it one of the strongest liquid drain cleaners available. The ready-mixed formula requires no dilution and works quickly to destroy grease, cooking fat, hair, soap build-up, paper and organic matter. Safe on Pipes When Used as Directed: Provided the dosage instructions are followed, this drain cleaner does not damage pipes. For sink and standard drains, use 100ml; for toilet and floor drains, use 250ml. Pour slowly, allow 5 minutes to work, then carefully add 100ml of cold water, leave a further 5 minutes, and flush thoroughly. Suitable for Preventative Maintenance Too: As well as clearing existing blockages, this product can be used as part of a regular maintenance routine. Adding approximately 100ml per drain each month - ideally early in the morning - helps prevent grease and debris accumulating over time. Important Safety Information: This product carries the signal word Danger and hazard statement H314 (causes severe skin burns and eye damage). It reacts violently with water, so always add water to the drain slowly and carefully after the initial dwell time - never pour product directly onto water. Keep out of reach of children and store locked up. Wear appropriate protective equipment during use. Dispose of contents and container in accordance with national regulations. Shop the Homewares range from Heavins.ie, with delivery available across Ireland. Key Features 97% Sulphuric Acid Formula - one of the highest concentrations available in a ready-mixed drain cleaner.

Ready-Mixed - no dilution required; use straight from the bottle.

Clears Sinks, Drains and Toilets - suitable for a wide range of household and commercial drainage points.

Fast-Acting - begins working within minutes of application.

Safe on Pipes - does not damage pipework provided dosage instructions are followed.

Destroys Grease, Hair, Fat and Organic Matter - tackles the most common causes of drain blockages.

Preventative Use - 100ml per drain per month helps keep drainage flowing freely.1 Litre Bottle - provides multiple applications per bottle. Specifications Brand: Douglas SKU: OSD0100 EAN: 5098929330228 Volume: 1 Litre Active Ingredient: 97% Sulphuric Acid Product State: Ready-mixed liquid Suitable For: Sinks, drains and toilets Dosage (Sink/Standard Drain): 100ml Dosage (Toilet/Floor Drain): 250ml Preventative Dose: Approx. 100ml per drain per month Dwell Time: 5 minutes initial, then add cold water and allow a further 5 minutes Signal Word: Danger Hazard Statement: H314 - Causes severe skin burns and eye damage Supplemental Warning: EUH014 - Reacts violently with water What's Included in the Box 1 x Douglas Instant Drain Cleaner 1 Litre Bottle