A complete gasket set for 65mm flanged dry riser connections, including a nitrile rubber gasket and the nuts, bolts and washers needed for a clean, leak-free joint. The set landing valves, breaching inlets, and air release valves all rely on for a pressure-tight seal.Key specs Nitrile rubber 65mm flanged gasket Carbon steel bolt set (nuts, bolts, washers) Suitable for PN16 or Table D depending on your existing flange UK manufactured When to replaceReplace whenever you remove a flanged valve for servicing, or where a test has picked up a weeping joint. Fresh gaskets and bolts are a cheap way to pass the next BS9990:2015 hydrostatic test first time.UK stock & deliveryKept in UK stock for same-day dispatch. Order plenty if you’re refurbishing a block of flats — they’re low-cost and easy to run out of on site.