Aqua Rinse Plus by Thetford is the original pink toilet flush-water tank additive. The highly effective formula lubricates seals, assists flush and leaves toilet smelling fresh. Features It leaves a micro-thin protective film in the toilet bowl and has lubricating qualities to assist opening and closing of the blade. Septic safe Has a pleasant lavender scent Bottle has a child proof lid Bottle has volume markings on side Specifications Model: T30362ZK Cequent Bottle volume: 1 litre Recommended dose: 100ml per 15 litre flush tank Doses per bottle: 10 Shipping Weight: 1.09 Kgs. Shipping Dimensions: 28 cm x 9 cm x 9 cm.