All of our PVC valves (50mm-100mm) are made from a food grade safe plastic. The (150mm) Polyurethane valve is safe to use with food however, strictly speaking are not food grade due to the dye used to colour them. The dye does become inert after the mould is cast and parts of the polyurethane would need to be cut off and ground down to extract the dye. This is of course very unlikely and results in so little of the dye being exposed that it is of minimal risk. If you still have concerns however, the valves can be made in a food grade polyurethane specifically for your order. The food grade polyurethane valves are non-returnable as they are custom orders.
Aussie Koi WA, designs and builds high quality fish ponds. We have been using OzValves for over 10 years and they have proven both cost effective and superior to other similar valves on the market. We have not had one complain and never changed a set of seals in this time. We also like the fact that it is possible to change the internals without cutting out the valve from the line, not that we have ever had to do this but this was the original attraction to the valve. Add to this good friendly reliable service; we have no hesitation in highly recommended them to others.