Features The universal hook is suitable for filters with a bowl neck between 20-21 cm. It serves as a connection between the sand tub and the selector valve. It is important to avoid water leakage from the filter. Installation is easy and simple. Made from durable materials to ensure a long service life. Sand filter retains impurities and keeps pool water free of unwanted bacteria and organisms. Effective cleaning for pools of all types, for better redemption and durability. GRE's safety and versatility comes home with accessories for pools of all kinds. With a wide range of specialized and certified items for the highest safety in pools and spas, we offer the most innovative pool care products to achieve the perfect pool. Product DescriptionThe hoe acts as a clamp that allows the multi-way valve to be held attached to the filter bucket where the sand is stored. It is important to quickly replace damaged clamps to prevent leaks or a loss of pressure on the filter. The Ar508 gre model has several advantages. Its installation is simple and quick.It is suitable for all models of greg sand purifiers. It is made of durable and durable materials, which help prevent leakage.