The set includes 16 garden arrow drippers, 16 3/5mm hoses and 4 regulators, meets your needs. Seepage irrigation design, irrigation along the piston to prevent erosion or erosion of the soil matrix. Used with pressure compensation dropper, increase pressure compensation and leak prevention. just connect it to the hose and 3/5 regulators, which you can achieve with precise and uniform drip irrigation. Mainly used for drip irrigation of flowers, fruit trees, potted plants, vegetables, herbs and so on. Specifications: The set includes 16 garden arrow drippers, 16 3/5mm hoses and 4 regulators, meets your needs. Infiltration irrigation design, irrigation along the piston to avoid soil matrix erosion or erosion. Used with pressure compensation dropper, increase pressure compensation and leak prevention. just connect it to the hose and 3/5 regulators, which you can achieve with precise and uniform drip irrigation. Mainly used for drip irrigation of flowers, fruit trees, potted plants,