The Arctic Hayes 144 Piece Plumbers O Ring Set is a comprehensive assortment kit designed to provide plumbers with essential O-ring seals for common plumbing applications. This kit contains a wide selection of the most frequently used O-ring sizes, making it ideal for general plumbing repairs, maintenance work, and emergency callouts where having the right seal size immediately to hand is essential. Each O-ring size is supplied in quantities of 12, covering a range of dimensions from 14mm to 33mm outer diameter with wall thicknesses of 1.8mm, 2.65mm, and 3.5mm. This careful selection ensures professional plumbers and heating engineers have suitable seals for tap repairs, valve maintenance, and various plumbing fittings commonly encountered across residential and commercial installations. The O-rings are supplied in a quality compartment storage box that keeps each size organised and easily identifiable on site. The durable carry case is designed for workshop storage or transport in the