Staifix 225mm Type 4 / Type A Housing Tie 1 BoxThe Staifix HRT4 Wall Tie (Type 4) is designed for use in external walls of houses and small commercial developments up to 10 metres in height. It is also suitable for internal separating walls of buildings of any height, providing versatile and reliable performance. Featuring a multi drip design to prevent moisture from travelling across the cavity, this wall tie is an excellent choice for enhancing the durability and effectiveness of your wall