Fix-A-Loo Drain Away

How are you allowed to sell a product with such a wide range for the percentage of active ingredient!? How much active ingredient am I paying for? 10%, or up to 30%, who's to know these things...? Drain Away Heavy Duty Caustic Drain Cleaner: Active Ingredient: Sodium Hydroxide (NaOH) Concentration: 10–30% NaOH Formulation: Alkaline Volume: 5 L Price: Approximately $68 Active Ingredient per Litre: 0.10–0.30 L NaOH Total Active Ingredient per Unit: 0.5 L (10%) to 1.5 L (30%) over 5 L Cost per Litre of Active Ingredient: At 10%: $68 ÷ 0.5 L = $136; At 30%: $68 ÷ 1.5 L = $45.33 Performance: Medium-strength degreaser/unblocker for organic waste

Drain Away's variable concentration range and less precise disclosure may affect its effectiveness and value.‍