The certificate was presented during The Installer Show at the NEC at the end of June on the company’s stand. Luke Yates from NSF presented the certificate and a plaque to Navigator’s John Byrne.

The Serpent is the new way to make flexible connections – particularly if you’re working in a restricted, confined space – like under a sink where there are several other pipes and fittings, or if its fully on display and you don’t want a mesh connector that quickly rusts or at best, loses its pristine look soon after fitting. And it’s an all stainless steel construction product – so its reliable and does the job 100%.

The Serpent has no inner liner to rupture or block, and even when the hose is bent to an acute angle, the full bore is maintained, resulting in perfect flow and much easier installation. The pressure rating and flexibility of the product has been successfully tested for leakage and pressure to BS EN ISO 1086:2023 which specifies a maximum test pressure of 31.5 BAR and a leak test of 1.5 times that pressure.

It’s NSF Regulation-4 approved for use with potable water and uses only WRAS approved materials, it comes in white and has a wipe clean outer cover. It can be bent and re-bent – it won’t split or snap. The fittings at either end – and there are a wide selection of these, both sizes and end connections – are stainless steel and easy to tighten and loosen. It’s a dream product and its available from all good plumbers merchants.

“We’re more than delighted to get the NSF Reg-4 for this excellent product,” says Navigator’s Roger Evans. “We’ve been pleased with the way our relationship with NSF has progressed and the speed with which they have managed to provide approval. They agreed to have this for us at the show and they were good to their word. Interest in the Serpent has been phenomenal already, so we’re looking to see this transform into a major success story for Navigator.”