and if the info is honest and accurate I see nothing wrong with the product. If in doubt, communicate with them and ask if their products have additives? Food grade is Food grade. But I don't know that particular product.
For about $22.00CAN (cost of 35% H2O2 + shipment + 6litres of Distilled water at drug store) I make 6 times the amount that the $16.00US bottle has.
That is the only difference I see.
35% H2O2 should be carefully stored, especially if one has children.