One of Vyair’s Most Vast Product Ranges is Accessories! These can Range fromJohn Guest and DM Fit Fittings of All different Types of Function to Filter Housings. Some of the Items in between include Piping, Spanners, Valves and Gauges for our more complex Water Filtration Systems. We are Proud to Supply HM Digital and Milwaukee products! Mainly including Water Testing Equipment, these can be used to measure levels of PH, TDS and Flow Rate.