MT Valves & Fittings product. Extension for long neck ball valve, compatible with models 4221, 4222, 4223 and 40642. Manufactured with reinforced brass body, in accordance with UNE EN 12165 standard. The extension is used to extend the shafts of the long neck valves. They are connected to the controls by means of an 8×8 mm square and are fixed with a screw, included in the product. The use of an extension on the valves increases the separation of the panel and control from the pipe shaft, making it ideal for systems where the valve is recessed and the control is not accessible. This fitting allows a gap to be established between the valve body and the end of the wall in systems where regulation distances are required. MT brass valves and fittings have excellent mechanical properties and are resistant to oxidation. Available references and published specifications: • 423002 — measures: EXTENSION FOR LONG NECK VALVES; weight (kg): 0.02; small / large box: 25 / 1000 • 423003 — measures: STEM EXTENSION ADAPTOR (SQUARE-SPLINE) FOR LONG NECK VALVES; weight (kg): 0.01; small / large box: 25 / 1000 Price and local availability on request. Source: https://mtspain.net/en/brass-stem-extension-adaptor-for-long-neck-valves/