Pour in stain removing power. Maximise your carpet cleaner’s performance with BISSELL Oxy Boost Carpet Cleaning Formula Enhancer. Simply add to your tank along with formula and clean like you normally would. The oxygen in the enhancer creates a reaction with the stain on contact to remove even tough, set-in stains. It’s a difference you can see. Carpet cleaning formula enhancer designed to remove old, set-in stains permanently—guaranteed safe for use in all carpet washers and with all formulas Earth friendly formula. Contains no heavy metals, phosphates, or dyes. Biodegradable detergent Maximises the performance of any carpet cleaning machine Suitable for models: 2457P, 2457H, 2066F, 53W1F, 1858F, 1858T, 20W7F, 14U6F, 39Q6F, 1970F, 2080F, 3278F, 1466F, 25M1F, 57G7F, 83V5F, 1694F, 1623F, 2009F, 20095, 3698F, 36984, 15582, 1558H, 4720H,4720P, 4720K & 2571F