We ordered the Lube Pro Plus grease gun end directly from the firm’s website (lubeproplus. com) for €49.65 including VAT. The coupler is supplied with a 30cm long, 10mm diameter hose with fine threads on both ends and should fit most grease guns. There is also a fitting to attach the new hose to the existing gun hose if you want to make it longer. Also in the bag are three replacement grease nipples with different thread sizes – it is always good to have a few spares.