Conical Nozzle MB25/36 - Pack of 2 Conical nozzles suitable for our Powermig 2750, 3500, 450 and Mightymig 250 range of welders with MB25/36 torches. Compatible with MB25/36 torches. FROM A REPUTABLE UK COMPANY. Founded in 1978, Sealey is a large family run business with a vast product range. Trusted by professionals, all Sealey products are thoroughly tested and backed by unrivalled aftersales service.