Hygrade Products Limited 667B Great South Road , Penrose , Auckland 1061 New Zealand About Solutions products Companies Hygrade Products Limited Products Flexible Couplers Flexible Couplers 0 Share Rubber couplers with stainless steel clamps and shear bands for repairs and/or jointing of all drainage pipes. Most popular related searches drainage pipe drainage piping pipe repair Customer reviews No reviews were found for Flexible Couplers. Be the first to review! Add your review Publish your review Great! review successfully added!